Home / 813,326.27-1,218,332.75-385,565.54

Finding the Fourth Proportional to 813,326.27, 1,218,332.75 and 385,565.54

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Solution

The fourth proportional to 813,326.27, 1,218,332.75 and 385,565.54 is: 577,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,326.27 : 1,218,332.75 = 385,565.54 : x
  2. Step 2: Convert to fraction form
    813,326.27/1,218,332.75 = 385,565.54/x
  3. Step 3: Cross multiply
    813,326.27x = 1,218,332.75 × 385,565.54
  4. Step 4: Simplify right side
    813,326.27x = 469,747,116,633.94
  5. Step 5: Solve for x
    x = 469,747,116,633.94/813,326.27
  6. Step 6: Final answer
    x = 577,562.95

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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.