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Finding the Fourth Proportional to 531,953.40, 797,930.10 and 488,407.80

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Solution

The fourth proportional to 531,953.40, 797,930.10 and 488,407.80 is: 732,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,953.40 : 797,930.10 = 488,407.80 : x
  2. Step 2: Convert to fraction form
    531,953.40/797,930.10 = 488,407.80/x
  3. Step 3: Cross multiply
    531,953.40x = 797,930.10 × 488,407.80
  4. Step 4: Simplify right side
    531,953.40x = 389,715,284,694.78
  5. Step 5: Solve for x
    x = 389,715,284,694.78/531,953.40
  6. Step 6: Final answer
    x = 732,611.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.