Home / 1,129,109.43-1,558,172.65-612,863.72

Finding the Fourth Proportional to 1,129,109.43, 1,558,172.65 and 612,863.72

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Solution

The fourth proportional to 1,129,109.43, 1,558,172.65 and 612,863.72 is: 845,752.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,109.43 : 1,558,172.65 = 612,863.72 : x
  2. Step 2: Convert to fraction form
    1,129,109.43/1,558,172.65 = 612,863.72/x
  3. Step 3: Cross multiply
    1,129,109.43x = 1,558,172.65 × 612,863.72
  4. Step 4: Simplify right side
    1,129,109.43x = 954,947,486,681.26
  5. Step 5: Solve for x
    x = 954,947,486,681.26/1,129,109.43
  6. Step 6: Final answer
    x = 845,752.82

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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.