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Finding the Fourth Proportional to 445,484.90, 614,174.42 and 353,908.04

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Solution

The fourth proportional to 445,484.90, 614,174.42 and 353,908.04 is: 487,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,484.90 : 614,174.42 = 353,908.04 : x
  2. Step 2: Convert to fraction form
    445,484.90/614,174.42 = 353,908.04/x
  3. Step 3: Cross multiply
    445,484.90x = 614,174.42 × 353,908.04
  4. Step 4: Simplify right side
    445,484.90x = 217,361,265,200.34
  5. Step 5: Solve for x
    x = 217,361,265,200.34/445,484.90
  6. Step 6: Final answer
    x = 487,920.61

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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.