Home / 1,042,487.36-1,438,787.28-660,549.92

Finding the Fourth Proportional to 1,042,487.36, 1,438,787.28 and 660,549.92

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Solution

The fourth proportional to 1,042,487.36, 1,438,787.28 and 660,549.92 is: 911,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,487.36 : 1,438,787.28 = 660,549.92 : x
  2. Step 2: Convert to fraction form
    1,042,487.36/1,438,787.28 = 660,549.92/x
  3. Step 3: Cross multiply
    1,042,487.36x = 1,438,787.28 × 660,549.92
  4. Step 4: Simplify right side
    1,042,487.36x = 950,390,822,701.02
  5. Step 5: Solve for x
    x = 950,390,822,701.02/1,042,487.36
  6. Step 6: Final answer
    x = 911,656.93

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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.