Home / 765,253.17-1,148,103.92-315,999.63

Finding the Fourth Proportional to 765,253.17, 1,148,103.92 and 315,999.63

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Solution

The fourth proportional to 765,253.17, 1,148,103.92 and 315,999.63 is: 474,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,253.17 : 1,148,103.92 = 315,999.63 : x
  2. Step 2: Convert to fraction form
    765,253.17/1,148,103.92 = 315,999.63/x
  3. Step 3: Cross multiply
    765,253.17x = 1,148,103.92 × 315,999.63
  4. Step 4: Simplify right side
    765,253.17x = 362,800,414,711.55
  5. Step 5: Solve for x
    x = 362,800,414,711.55/765,253.17
  6. Step 6: Final answer
    x = 474,092.01

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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.