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Finding the Fourth Proportional to 1,129,689, 1,559,109.06 and 652,761

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Solution

The fourth proportional to 1,129,689, 1,559,109.06 and 652,761 is: 900,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,689 : 1,559,109.06 = 652,761 : x
  2. Step 2: Convert to fraction form
    1,129,689/1,559,109.06 = 652,761/x
  3. Step 3: Cross multiply
    1,129,689x = 1,559,109.06 × 652,761
  4. Step 4: Simplify right side
    1,129,689x = 1,017,725,589,114.66
  5. Step 5: Solve for x
    x = 1,017,725,589,114.66/1,129,689
  6. Step 6: Final answer
    x = 900,890.06

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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.