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Finding the Fourth Proportional to 542,219.59, 748,263.05 and 300,538.54

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Solution

The fourth proportional to 542,219.59, 748,263.05 and 300,538.54 is: 414,743.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,219.59 : 748,263.05 = 300,538.54 : x
  2. Step 2: Convert to fraction form
    542,219.59/748,263.05 = 300,538.54/x
  3. Step 3: Cross multiply
    542,219.59x = 748,263.05 × 300,538.54
  4. Step 4: Simplify right side
    542,219.59x = 224,881,884,582.95
  5. Step 5: Solve for x
    x = 224,881,884,582.95/542,219.59
  6. Step 6: Final answer
    x = 414,743.19

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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.