Home / 1,152,013.62-1,589,779.80-642,716.13

Finding the Fourth Proportional to 1,152,013.62, 1,589,779.80 and 642,716.13

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Solution

The fourth proportional to 1,152,013.62, 1,589,779.80 and 642,716.13 is: 886,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,013.62 : 1,589,779.80 = 642,716.13 : x
  2. Step 2: Convert to fraction form
    1,152,013.62/1,589,779.80 = 642,716.13/x
  3. Step 3: Cross multiply
    1,152,013.62x = 1,589,779.80 × 642,716.13
  4. Step 4: Simplify right side
    1,152,013.62x = 1,021,777,120,608.17
  5. Step 5: Solve for x
    x = 1,021,777,120,608.17/1,152,013.62
  6. Step 6: Final answer
    x = 886,948.82

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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.