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Finding the Fourth Proportional to 542,020.53, 748,339.35 and 348,515.16

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Solution

The fourth proportional to 542,020.53, 748,339.35 and 348,515.16 is: 481,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,020.53 : 748,339.35 = 348,515.16 : x
  2. Step 2: Convert to fraction form
    542,020.53/748,339.35 = 348,515.16/x
  3. Step 3: Cross multiply
    542,020.53x = 748,339.35 × 348,515.16
  4. Step 4: Simplify right side
    542,020.53x = 260,807,608,299.55
  5. Step 5: Solve for x
    x = 260,807,608,299.55/542,020.53
  6. Step 6: Final answer
    x = 481,176.62

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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.