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Finding the Fourth Proportional to 713,347.68, 1,070,079.76 and 292,627.20

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Solution

The fourth proportional to 713,347.68, 1,070,079.76 and 292,627.20 is: 438,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,347.68 : 1,070,079.76 = 292,627.20 : x
  2. Step 2: Convert to fraction form
    713,347.68/1,070,079.76 = 292,627.20/x
  3. Step 3: Cross multiply
    713,347.68x = 1,070,079.76 × 292,627.20
  4. Step 4: Simplify right side
    713,347.68x = 313,134,443,945.47
  5. Step 5: Solve for x
    x = 313,134,443,945.47/713,347.68
  6. Step 6: Final answer
    x = 438,964.69

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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.