Home / 712,230.50-982,875.48-406,306.38

Finding the Fourth Proportional to 712,230.50, 982,875.48 and 406,306.38

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Solution

The fourth proportional to 712,230.50, 982,875.48 and 406,306.38 is: 560,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,230.50 : 982,875.48 = 406,306.38 : x
  2. Step 2: Convert to fraction form
    712,230.50/982,875.48 = 406,306.38/x
  3. Step 3: Cross multiply
    712,230.50x = 982,875.48 × 406,306.38
  4. Step 4: Simplify right side
    712,230.50x = 399,348,578,269.56
  5. Step 5: Solve for x
    x = 399,348,578,269.56/712,230.50
  6. Step 6: Final answer
    x = 560,701.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.