Home / 987,679.60-1,363,098.18-712,263.94

Finding the Fourth Proportional to 987,679.60, 1,363,098.18 and 712,263.94

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Solution

The fourth proportional to 987,679.60, 1,363,098.18 and 712,263.94 is: 982,996.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,679.60 : 1,363,098.18 = 712,263.94 : x
  2. Step 2: Convert to fraction form
    987,679.60/1,363,098.18 = 712,263.94/x
  3. Step 3: Cross multiply
    987,679.60x = 1,363,098.18 × 712,263.94
  4. Step 4: Simplify right side
    987,679.60x = 970,885,680,293.63
  5. Step 5: Solve for x
    x = 970,885,680,293.63/987,679.60
  6. Step 6: Final answer
    x = 982,996.59

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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.