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Finding the Fourth Proportional to 542,459.04, 748,573.20 and 303,979.68

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Solution

The fourth proportional to 542,459.04, 748,573.20 and 303,979.68 is: 419,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,459.04 : 748,573.20 = 303,979.68 : x
  2. Step 2: Convert to fraction form
    542,459.04/748,573.20 = 303,979.68/x
  3. Step 3: Cross multiply
    542,459.04x = 748,573.20 × 303,979.68
  4. Step 4: Simplify right side
    542,459.04x = 227,551,041,792.58
  5. Step 5: Solve for x
    x = 227,551,041,792.58/542,459.04
  6. Step 6: Final answer
    x = 419,480.60

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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.