Home / 724,357.92-1,086,759.36-345,761.76

Finding the Fourth Proportional to 724,357.92, 1,086,759.36 and 345,761.76

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Solution

The fourth proportional to 724,357.92, 1,086,759.36 and 345,761.76 is: 518,748.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,357.92 : 1,086,759.36 = 345,761.76 : x
  2. Step 2: Convert to fraction form
    724,357.92/1,086,759.36 = 345,761.76/x
  3. Step 3: Cross multiply
    724,357.92x = 1,086,759.36 × 345,761.76
  4. Step 4: Simplify right side
    724,357.92x = 375,759,829,010.07
  5. Step 5: Solve for x
    x = 375,759,829,010.07/724,357.92
  6. Step 6: Final answer
    x = 518,748.84

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Double scale
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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.