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Finding the Fourth Proportional to 488,507.70, 732,761.55 and 329,075.40

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Solution

The fourth proportional to 488,507.70, 732,761.55 and 329,075.40 is: 493,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,507.70 : 732,761.55 = 329,075.40 : x
  2. Step 2: Convert to fraction form
    488,507.70/732,761.55 = 329,075.40/x
  3. Step 3: Cross multiply
    488,507.70x = 732,761.55 × 329,075.40
  4. Step 4: Simplify right side
    488,507.70x = 241,133,800,170.87
  5. Step 5: Solve for x
    x = 241,133,800,170.87/488,507.70
  6. Step 6: Final answer
    x = 493,613.10

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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.