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Finding the Fourth Proportional to 522,069.45, 781,354.58 and 459,083.85

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Solution

The fourth proportional to 522,069.45, 781,354.58 and 459,083.85 is: 687,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,069.45 : 781,354.58 = 459,083.85 : x
  2. Step 2: Convert to fraction form
    522,069.45/781,354.58 = 459,083.85/x
  3. Step 3: Cross multiply
    522,069.45x = 781,354.58 × 459,083.85
  4. Step 4: Simplify right side
    522,069.45x = 358,707,266,506.11
  5. Step 5: Solve for x
    x = 358,707,266,506.11/522,069.45
  6. Step 6: Final answer
    x = 687,087.26

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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.