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Finding the Fourth Proportional to 868,889.92, 1,199,653.92 and 542,701.12

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Solution

The fourth proportional to 868,889.92, 1,199,653.92 and 542,701.12 is: 749,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,889.92 : 1,199,653.92 = 542,701.12 : x
  2. Step 2: Convert to fraction form
    868,889.92/1,199,653.92 = 542,701.12/x
  3. Step 3: Cross multiply
    868,889.92x = 1,199,653.92 × 542,701.12
  4. Step 4: Simplify right side
    868,889.92x = 651,053,525,996.39
  5. Step 5: Solve for x
    x = 651,053,525,996.39/868,889.92
  6. Step 6: Final answer
    x = 749,293.45

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1.5x scale

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.