Home / 831,663.03-1,147,695.80-449,689.71

Finding the Fourth Proportional to 831,663.03, 1,147,695.80 and 449,689.71

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Solution

The fourth proportional to 831,663.03, 1,147,695.80 and 449,689.71 is: 620,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,663.03 : 1,147,695.80 = 449,689.71 : x
  2. Step 2: Convert to fraction form
    831,663.03/1,147,695.80 = 449,689.71/x
  3. Step 3: Cross multiply
    831,663.03x = 1,147,695.80 × 449,689.71
  4. Step 4: Simplify right side
    831,663.03x = 516,106,989,221.77
  5. Step 5: Solve for x
    x = 516,106,989,221.77/831,663.03
  6. Step 6: Final answer
    x = 620,572.24

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Double scale
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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.