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Finding the Fourth Proportional to 536,478.48, 807,931.02 and 488,649.12

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Solution

The fourth proportional to 536,478.48, 807,931.02 and 488,649.12 is: 735,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,478.48 : 807,931.02 = 488,649.12 : x
  2. Step 2: Convert to fraction form
    536,478.48/807,931.02 = 488,649.12/x
  3. Step 3: Cross multiply
    536,478.48x = 807,931.02 × 488,649.12
  4. Step 4: Simplify right side
    536,478.48x = 394,794,781,943.70
  5. Step 5: Solve for x
    x = 394,794,781,943.70/536,478.48
  6. Step 6: Final answer
    x = 735,900.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.