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Finding the Fourth Proportional to 586,724.51, 809,612.82 and 328,565.57

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Solution

The fourth proportional to 586,724.51, 809,612.82 and 328,565.57 is: 453,382.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,724.51 : 809,612.82 = 328,565.57 : x
  2. Step 2: Convert to fraction form
    586,724.51/809,612.82 = 328,565.57/x
  3. Step 3: Cross multiply
    586,724.51x = 809,612.82 × 328,565.57
  4. Step 4: Simplify right side
    586,724.51x = 266,010,893,634.54
  5. Step 5: Solve for x
    x = 266,010,893,634.54/586,724.51
  6. Step 6: Final answer
    x = 453,382.96

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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.