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Finding the Fourth Proportional to 610,673.40, 916,010.10 and 512,695.80

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Solution

The fourth proportional to 610,673.40, 916,010.10 and 512,695.80 is: 769,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,673.40 : 916,010.10 = 512,695.80 : x
  2. Step 2: Convert to fraction form
    610,673.40/916,010.10 = 512,695.80/x
  3. Step 3: Cross multiply
    610,673.40x = 916,010.10 × 512,695.80
  4. Step 4: Simplify right side
    610,673.40x = 469,634,531,027.58
  5. Step 5: Solve for x
    x = 469,634,531,027.58/610,673.40
  6. Step 6: Final answer
    x = 769,043.70

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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.