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Finding the Fourth Proportional to 542,467.60, 748,623 and 300,772.66

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Solution

The fourth proportional to 542,467.60, 748,623 and 300,772.66 is: 415,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,467.60 : 748,623 = 300,772.66 : x
  2. Step 2: Convert to fraction form
    542,467.60/748,623 = 300,772.66/x
  3. Step 3: Cross multiply
    542,467.60x = 748,623 × 300,772.66
  4. Step 4: Simplify right side
    542,467.60x = 225,165,331,047.18
  5. Step 5: Solve for x
    x = 225,165,331,047.18/542,467.60
  6. Step 6: Final answer
    x = 415,076.09

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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.