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Finding the Fourth Proportional to 626,521.87, 864,608.48 and 340,045.39

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Solution

The fourth proportional to 626,521.87, 864,608.48 and 340,045.39 is: 469,267.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,521.87 : 864,608.48 = 340,045.39 : x
  2. Step 2: Convert to fraction form
    626,521.87/864,608.48 = 340,045.39/x
  3. Step 3: Cross multiply
    626,521.87x = 864,608.48 × 340,045.39
  4. Step 4: Simplify right side
    626,521.87x = 294,006,126,078.68
  5. Step 5: Solve for x
    x = 294,006,126,078.68/626,521.87
  6. Step 6: Final answer
    x = 469,267.14

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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.