Home / 450,124.20-674,279.10-281,125.80

Finding the Fourth Proportional to 450,124.20, 674,279.10 and 281,125.80

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Solution

The fourth proportional to 450,124.20, 674,279.10 and 281,125.80 is: 421,122.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,124.20 : 674,279.10 = 281,125.80 : x
  2. Step 2: Convert to fraction form
    450,124.20/674,279.10 = 281,125.80/x
  3. Step 3: Cross multiply
    450,124.20x = 674,279.10 × 281,125.80
  4. Step 4: Simplify right side
    450,124.20x = 189,557,251,410.78
  5. Step 5: Solve for x
    x = 189,557,251,410.78/450,124.20
  6. Step 6: Final answer
    x = 421,122.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.