Home / 999,564.90-1,377,964.74-712,586.76

Finding the Fourth Proportional to 999,564.90, 1,377,964.74 and 712,586.76

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Solution

The fourth proportional to 999,564.90, 1,377,964.74 and 712,586.76 is: 982,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,564.90 : 1,377,964.74 = 712,586.76 : x
  2. Step 2: Convert to fraction form
    999,564.90/1,377,964.74 = 712,586.76/x
  3. Step 3: Cross multiply
    999,564.90x = 1,377,964.74 × 712,586.76
  4. Step 4: Simplify right side
    999,564.90x = 981,919,429,470.84
  5. Step 5: Solve for x
    x = 981,919,429,470.84/999,564.90
  6. Step 6: Final answer
    x = 982,346.85

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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.