Home / 1,126,029.12-1,554,031.88-642,667.47

Finding the Fourth Proportional to 1,126,029.12, 1,554,031.88 and 642,667.47

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Solution

The fourth proportional to 1,126,029.12, 1,554,031.88 and 642,667.47 is: 886,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,029.12 : 1,554,031.88 = 642,667.47 : x
  2. Step 2: Convert to fraction form
    1,126,029.12/1,554,031.88 = 642,667.47/x
  3. Step 3: Cross multiply
    1,126,029.12x = 1,554,031.88 × 642,667.47
  4. Step 4: Simplify right side
    1,126,029.12x = 998,725,736,618.94
  5. Step 5: Solve for x
    x = 998,725,736,618.94/1,126,029.12
  6. Step 6: Final answer
    x = 886,944.86

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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.