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Finding the Fourth Proportional to 542,169.30, 812,087.55 and 448,857.30

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Solution

The fourth proportional to 542,169.30, 812,087.55 and 448,857.30 is: 672,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,169.30 : 812,087.55 = 448,857.30 : x
  2. Step 2: Convert to fraction form
    542,169.30/812,087.55 = 448,857.30/x
  3. Step 3: Cross multiply
    542,169.30x = 812,087.55 × 448,857.30
  4. Step 4: Simplify right side
    542,169.30x = 364,511,425,056.62
  5. Step 5: Solve for x
    x = 364,511,425,056.62/542,169.30
  6. Step 6: Final answer
    x = 672,320.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.