Home / 724,996.40-1,087,883.40-304,314.80

Finding the Fourth Proportional to 724,996.40, 1,087,883.40 and 304,314.80

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Solution

The fourth proportional to 724,996.40, 1,087,883.40 and 304,314.80 is: 456,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,996.40 : 1,087,883.40 = 304,314.80 : x
  2. Step 2: Convert to fraction form
    724,996.40/1,087,883.40 = 304,314.80/x
  3. Step 3: Cross multiply
    724,996.40x = 1,087,883.40 × 304,314.80
  4. Step 4: Simplify right side
    724,996.40x = 331,059,019,294.32
  5. Step 5: Solve for x
    x = 331,059,019,294.32/724,996.40
  6. Step 6: Final answer
    x = 456,635.40

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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.