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Finding the Fourth Proportional to 586,398.86, 809,162.16 and 328,289.96

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Solution

The fourth proportional to 586,398.86, 809,162.16 and 328,289.96 is: 453,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,398.86 : 809,162.16 = 328,289.96 : x
  2. Step 2: Convert to fraction form
    586,398.86/809,162.16 = 328,289.96/x
  3. Step 3: Cross multiply
    586,398.86x = 809,162.16 × 328,289.96
  4. Step 4: Simplify right side
    586,398.86x = 265,639,813,139.91
  5. Step 5: Solve for x
    x = 265,639,813,139.91/586,398.86
  6. Step 6: Final answer
    x = 453,001.93

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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.