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Finding the Fourth Proportional to 542,167.80, 812,085.30 and 448,855.80

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Solution

The fourth proportional to 542,167.80, 812,085.30 and 448,855.80 is: 672,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,167.80 : 812,085.30 = 448,855.80 : x
  2. Step 2: Convert to fraction form
    542,167.80/812,085.30 = 448,855.80/x
  3. Step 3: Cross multiply
    542,167.80x = 812,085.30 × 448,855.80
  4. Step 4: Simplify right side
    542,167.80x = 364,509,196,999.74
  5. Step 5: Solve for x
    x = 364,509,196,999.74/542,167.80
  6. Step 6: Final answer
    x = 672,318.05

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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.