Home / 917,487.73-1,376,231.60-286,455.61

Finding the Fourth Proportional to 917,487.73, 1,376,231.60 and 286,455.61

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Solution

The fourth proportional to 917,487.73, 1,376,231.60 and 286,455.61 is: 429,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,487.73 : 1,376,231.60 = 286,455.61 : x
  2. Step 2: Convert to fraction form
    917,487.73/1,376,231.60 = 286,455.61/x
  3. Step 3: Cross multiply
    917,487.73x = 1,376,231.60 × 286,455.61
  4. Step 4: Simplify right side
    917,487.73x = 394,229,262,479.28
  5. Step 5: Solve for x
    x = 394,229,262,479.28/917,487.73
  6. Step 6: Final answer
    x = 429,683.42

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Similar ratio
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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.