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Finding the Fourth Proportional to 625,750.89, 863,542.88 and 367,638.58

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Solution

The fourth proportional to 625,750.89, 863,542.88 and 367,638.58 is: 507,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,750.89 : 863,542.88 = 367,638.58 : x
  2. Step 2: Convert to fraction form
    625,750.89/863,542.88 = 367,638.58/x
  3. Step 3: Cross multiply
    625,750.89x = 863,542.88 × 367,638.58
  4. Step 4: Simplify right side
    625,750.89x = 317,471,678,172.31
  5. Step 5: Solve for x
    x = 317,471,678,172.31/625,750.89
  6. Step 6: Final answer
    x = 507,345.15

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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.