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Finding the Fourth Proportional to 542,073.50, 748,050.34 and 300,355.32

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Solution

The fourth proportional to 542,073.50, 748,050.34 and 300,355.32 is: 414,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,073.50 : 748,050.34 = 300,355.32 : x
  2. Step 2: Convert to fraction form
    542,073.50/748,050.34 = 300,355.32/x
  3. Step 3: Cross multiply
    542,073.50x = 748,050.34 × 300,355.32
  4. Step 4: Simplify right side
    542,073.50x = 224,680,899,246.81
  5. Step 5: Solve for x
    x = 224,680,899,246.81/542,073.50
  6. Step 6: Final answer
    x = 414,484.20

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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.