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Finding the Fourth Proportional to 713,489.76, 1,070,398.44 and 240,162.48

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Solution

The fourth proportional to 713,489.76, 1,070,398.44 and 240,162.48 is: 360,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,489.76 : 1,070,398.44 = 240,162.48 : x
  2. Step 2: Convert to fraction form
    713,489.76/1,070,398.44 = 240,162.48/x
  3. Step 3: Cross multiply
    713,489.76x = 1,070,398.44 × 240,162.48
  4. Step 4: Simplify right side
    713,489.76x = 257,069,543,938.53
  5. Step 5: Solve for x
    x = 257,069,543,938.53/713,489.76
  6. Step 6: Final answer
    x = 360,298.86

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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.