Home / 1,158,379.38-1,598,638.14-642,155.04

Finding the Fourth Proportional to 1,158,379.38, 1,598,638.14 and 642,155.04

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Solution

The fourth proportional to 1,158,379.38, 1,598,638.14 and 642,155.04 is: 886,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,379.38 : 1,598,638.14 = 642,155.04 : x
  2. Step 2: Convert to fraction form
    1,158,379.38/1,598,638.14 = 642,155.04/x
  3. Step 3: Cross multiply
    1,158,379.38x = 1,598,638.14 × 642,155.04
  4. Step 4: Simplify right side
    1,158,379.38x = 1,026,573,538,737.23
  5. Step 5: Solve for x
    x = 1,026,573,538,737.23/1,158,379.38
  6. Step 6: Final answer
    x = 886,215.31

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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.