Home / 812,116.24-1,218,423.52-363,214.72

Finding the Fourth Proportional to 812,116.24, 1,218,423.52 and 363,214.72

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Solution

The fourth proportional to 812,116.24, 1,218,423.52 and 363,214.72 is: 544,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,116.24 : 1,218,423.52 = 363,214.72 : x
  2. Step 2: Convert to fraction form
    812,116.24/1,218,423.52 = 363,214.72/x
  3. Step 3: Cross multiply
    812,116.24x = 1,218,423.52 × 363,214.72
  4. Step 4: Simplify right side
    812,116.24x = 442,549,357,658.21
  5. Step 5: Solve for x
    x = 442,549,357,658.21/812,116.24
  6. Step 6: Final answer
    x = 544,933.52

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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.