Home / 831,422.25-1,147,281.54-482,508.41

Finding the Fourth Proportional to 831,422.25, 1,147,281.54 and 482,508.41

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Solution

The fourth proportional to 831,422.25, 1,147,281.54 and 482,508.41 is: 665,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,422.25 : 1,147,281.54 = 482,508.41 : x
  2. Step 2: Convert to fraction form
    831,422.25/1,147,281.54 = 482,508.41/x
  3. Step 3: Cross multiply
    831,422.25x = 1,147,281.54 × 482,508.41
  4. Step 4: Simplify right side
    831,422.25x = 553,572,985,951.34
  5. Step 5: Solve for x
    x = 553,572,985,951.34/831,422.25
  6. Step 6: Final answer
    x = 665,814.50

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Double scale
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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.