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Finding the Fourth Proportional to 542,297.52, 748,415.39 and 300,655.89

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Solution

The fourth proportional to 542,297.52, 748,415.39 and 300,655.89 is: 414,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,297.52 : 748,415.39 = 300,655.89 : x
  2. Step 2: Convert to fraction form
    542,297.52/748,415.39 = 300,655.89/x
  3. Step 3: Cross multiply
    542,297.52x = 748,415.39 × 300,655.89
  4. Step 4: Simplify right side
    542,297.52x = 225,015,493,666.87
  5. Step 5: Solve for x
    x = 225,015,493,666.87/542,297.52
  6. Step 6: Final answer
    x = 414,929.97

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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.