Home / 1,293,432.20-1,940,439.90-394,915.40

Finding the Fourth Proportional to 1,293,432.20, 1,940,439.90 and 394,915.40

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Solution

The fourth proportional to 1,293,432.20, 1,940,439.90 and 394,915.40 is: 592,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,432.20 : 1,940,439.90 = 394,915.40 : x
  2. Step 2: Convert to fraction form
    1,293,432.20/1,940,439.90 = 394,915.40/x
  3. Step 3: Cross multiply
    1,293,432.20x = 1,940,439.90 × 394,915.40
  4. Step 4: Simplify right side
    1,293,432.20x = 766,309,599,284.46
  5. Step 5: Solve for x
    x = 766,309,599,284.46/1,293,432.20
  6. Step 6: Final answer
    x = 592,462.13

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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.