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Finding the Fourth Proportional to 545,666.85, 814,232.73 and 488,928.98

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Solution

The fourth proportional to 545,666.85, 814,232.73 and 488,928.98 is: 729,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,666.85 : 814,232.73 = 488,928.98 : x
  2. Step 2: Convert to fraction form
    545,666.85/814,232.73 = 488,928.98/x
  3. Step 3: Cross multiply
    545,666.85x = 814,232.73 × 488,928.98
  4. Step 4: Simplify right side
    545,666.85x = 398,101,974,090.35
  5. Step 5: Solve for x
    x = 398,101,974,090.35/545,666.85
  6. Step 6: Final answer
    x = 729,569.65

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.