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Finding the Fourth Proportional to 542,613.28, 748,792.10 and 300,895.08

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Solution

The fourth proportional to 542,613.28, 748,792.10 and 300,895.08 is: 415,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,613.28 : 748,792.10 = 300,895.08 : x
  2. Step 2: Convert to fraction form
    542,613.28/748,792.10 = 300,895.08/x
  3. Step 3: Cross multiply
    542,613.28x = 748,792.10 × 300,895.08
  4. Step 4: Simplify right side
    542,613.28x = 225,307,858,832.87
  5. Step 5: Solve for x
    x = 225,307,858,832.87/542,613.28
  6. Step 6: Final answer
    x = 415,227.32

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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.