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Finding the Fourth Proportional to 542,046.20, 747,998.55 and 297,029.51

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Solution

The fourth proportional to 542,046.20, 747,998.55 and 297,029.51 is: 409,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,046.20 : 747,998.55 = 297,029.51 : x
  2. Step 2: Convert to fraction form
    542,046.20/747,998.55 = 297,029.51/x
  3. Step 3: Cross multiply
    542,046.20x = 747,998.55 × 297,029.51
  4. Step 4: Simplify right side
    542,046.20x = 222,177,639,047.22
  5. Step 5: Solve for x
    x = 222,177,639,047.22/542,046.20
  6. Step 6: Final answer
    x = 409,886.91

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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.