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Finding the Fourth Proportional to 632,195.82, 872,421.84 and 360,279.90

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Solution

The fourth proportional to 632,195.82, 872,421.84 and 360,279.90 is: 497,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,195.82 : 872,421.84 = 360,279.90 : x
  2. Step 2: Convert to fraction form
    632,195.82/872,421.84 = 360,279.90/x
  3. Step 3: Cross multiply
    632,195.82x = 872,421.84 × 360,279.90
  4. Step 4: Simplify right side
    632,195.82x = 314,316,053,273.02
  5. Step 5: Solve for x
    x = 314,316,053,273.02/632,195.82
  6. Step 6: Final answer
    x = 497,181.48

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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.