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Finding the Fourth Proportional to 542,209.15, 748,248.60 and 300,528.04

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Solution

The fourth proportional to 542,209.15, 748,248.60 and 300,528.04 is: 414,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,209.15 : 748,248.60 = 300,528.04 : x
  2. Step 2: Convert to fraction form
    542,209.15/748,248.60 = 300,528.04/x
  3. Step 3: Cross multiply
    542,209.15x = 748,248.60 × 300,528.04
  4. Step 4: Simplify right side
    542,209.15x = 224,869,685,190.74
  5. Step 5: Solve for x
    x = 224,869,685,190.74/542,209.15
  6. Step 6: Final answer
    x = 414,728.68

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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.