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Finding the Fourth Proportional to 950,428, 1,311,267.72 and 542,236.60

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Solution

The fourth proportional to 950,428, 1,311,267.72 and 542,236.60 is: 748,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,428 : 1,311,267.72 = 542,236.60 : x
  2. Step 2: Convert to fraction form
    950,428/1,311,267.72 = 542,236.60/x
  3. Step 3: Cross multiply
    950,428x = 1,311,267.72 × 542,236.60
  4. Step 4: Simplify right side
    950,428x = 711,017,350,182.55
  5. Step 5: Solve for x
    x = 711,017,350,182.55/950,428
  6. Step 6: Final answer
    x = 748,102.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.