Home / 906,902.20-1,361,228.10-458,129.80

Finding the Fourth Proportional to 906,902.20, 1,361,228.10 and 458,129.80

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Solution

The fourth proportional to 906,902.20, 1,361,228.10 and 458,129.80 is: 687,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,902.20 : 1,361,228.10 = 458,129.80 : x
  2. Step 2: Convert to fraction form
    906,902.20/1,361,228.10 = 458,129.80/x
  3. Step 3: Cross multiply
    906,902.20x = 1,361,228.10 × 458,129.80
  4. Step 4: Simplify right side
    906,902.20x = 623,619,157,207.38
  5. Step 5: Solve for x
    x = 623,619,157,207.38/906,902.20
  6. Step 6: Final answer
    x = 687,636.61

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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.