Home / 1,129,109.18-1,558,172.31-612,863.47

Finding the Fourth Proportional to 1,129,109.18, 1,558,172.31 and 612,863.47

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Solution

The fourth proportional to 1,129,109.18, 1,558,172.31 and 612,863.47 is: 845,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,109.18 : 1,558,172.31 = 612,863.47 : x
  2. Step 2: Convert to fraction form
    1,129,109.18/1,558,172.31 = 612,863.47/x
  3. Step 3: Cross multiply
    1,129,109.18x = 1,558,172.31 × 612,863.47
  4. Step 4: Simplify right side
    1,129,109.18x = 954,946,885,700.20
  5. Step 5: Solve for x
    x = 954,946,885,700.20/1,129,109.18
  6. Step 6: Final answer
    x = 845,752.48

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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.