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Finding the Fourth Proportional to 512,875.20, 769,312.80 and 483,350.70

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Solution

The fourth proportional to 512,875.20, 769,312.80 and 483,350.70 is: 725,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,875.20 : 769,312.80 = 483,350.70 : x
  2. Step 2: Convert to fraction form
    512,875.20/769,312.80 = 483,350.70/x
  3. Step 3: Cross multiply
    512,875.20x = 769,312.80 × 483,350.70
  4. Step 4: Simplify right side
    512,875.20x = 371,847,880,398.96
  5. Step 5: Solve for x
    x = 371,847,880,398.96/512,875.20
  6. Step 6: Final answer
    x = 725,026.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.