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Finding the Fourth Proportional to 555,834.66, 767,057.88 and 326,394.66

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Solution

The fourth proportional to 555,834.66, 767,057.88 and 326,394.66 is: 450,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,834.66 : 767,057.88 = 326,394.66 : x
  2. Step 2: Convert to fraction form
    555,834.66/767,057.88 = 326,394.66/x
  3. Step 3: Cross multiply
    555,834.66x = 767,057.88 × 326,394.66
  4. Step 4: Simplify right side
    555,834.66x = 250,363,595,942.92
  5. Step 5: Solve for x
    x = 250,363,595,942.92/555,834.66
  6. Step 6: Final answer
    x = 450,428.18

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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.