Home / 999,763.92-1,378,238.76-712,785.96

Finding the Fourth Proportional to 999,763.92, 1,378,238.76 and 712,785.96

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Solution

The fourth proportional to 999,763.92, 1,378,238.76 and 712,785.96 is: 982,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,763.92 : 1,378,238.76 = 712,785.96 : x
  2. Step 2: Convert to fraction form
    999,763.92/1,378,238.76 = 712,785.96/x
  3. Step 3: Cross multiply
    999,763.92x = 1,378,238.76 × 712,785.96
  4. Step 4: Simplify right side
    999,763.92x = 982,389,237,655.81
  5. Step 5: Solve for x
    x = 982,389,237,655.81/999,763.92
  6. Step 6: Final answer
    x = 982,621.21

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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.