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Finding the Fourth Proportional to 720,454.59, 994,162.01 and 414,449.55

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Solution

The fourth proportional to 720,454.59, 994,162.01 and 414,449.55 is: 571,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,454.59 : 994,162.01 = 414,449.55 : x
  2. Step 2: Convert to fraction form
    720,454.59/994,162.01 = 414,449.55/x
  3. Step 3: Cross multiply
    720,454.59x = 994,162.01 × 414,449.55
  4. Step 4: Simplify right side
    720,454.59x = 412,029,995,599.35
  5. Step 5: Solve for x
    x = 412,029,995,599.35/720,454.59
  6. Step 6: Final answer
    x = 571,902.80

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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.