Home / 999,630.55-1,378,055.36-712,652.41

Finding the Fourth Proportional to 999,630.55, 1,378,055.36 and 712,652.41

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Solution

The fourth proportional to 999,630.55, 1,378,055.36 and 712,652.41 is: 982,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,630.55 : 1,378,055.36 = 712,652.41 : x
  2. Step 2: Convert to fraction form
    999,630.55/1,378,055.36 = 712,652.41/x
  3. Step 3: Cross multiply
    999,630.55x = 1,378,055.36 × 712,652.41
  4. Step 4: Simplify right side
    999,630.55x = 982,074,476,921.62
  5. Step 5: Solve for x
    x = 982,074,476,921.62/999,630.55
  6. Step 6: Final answer
    x = 982,437.44

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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.