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Finding the Fourth Proportional to 625,448.90, 863,096.36 and 338,962.84

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Solution

The fourth proportional to 625,448.90, 863,096.36 and 338,962.84 is: 467,756.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,448.90 : 863,096.36 = 338,962.84 : x
  2. Step 2: Convert to fraction form
    625,448.90/863,096.36 = 338,962.84/x
  3. Step 3: Cross multiply
    625,448.90x = 863,096.36 × 338,962.84
  4. Step 4: Simplify right side
    625,448.90x = 292,557,593,379.26
  5. Step 5: Solve for x
    x = 292,557,593,379.26/625,448.90
  6. Step 6: Final answer
    x = 467,756.19

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1.5x scale

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.