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Finding the Fourth Proportional to 542,330.17, 748,451.66 and 300,622.93

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Solution

The fourth proportional to 542,330.17, 748,451.66 and 300,622.93 is: 414,879.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,330.17 : 748,451.66 = 300,622.93 : x
  2. Step 2: Convert to fraction form
    542,330.17/748,451.66 = 300,622.93/x
  3. Step 3: Cross multiply
    542,330.17x = 748,451.66 × 300,622.93
  4. Step 4: Simplify right side
    542,330.17x = 225,001,730,992.56
  5. Step 5: Solve for x
    x = 225,001,730,992.56/542,330.17
  6. Step 6: Final answer
    x = 414,879.61

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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.