Home / 676,204.72-933,162.90-421,556.92

Finding the Fourth Proportional to 676,204.72, 933,162.90 and 421,556.92

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Solution

The fourth proportional to 676,204.72, 933,162.90 and 421,556.92 is: 581,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,204.72 : 933,162.90 = 421,556.92 : x
  2. Step 2: Convert to fraction form
    676,204.72/933,162.90 = 421,556.92/x
  3. Step 3: Cross multiply
    676,204.72x = 933,162.90 × 421,556.92
  4. Step 4: Simplify right side
    676,204.72x = 393,381,277,982.27
  5. Step 5: Solve for x
    x = 393,381,277,982.27/676,204.72
  6. Step 6: Final answer
    x = 581,748.79

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Half scale
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Double scale
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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.