Home / 1,287,414.18-1,776,638.46-714,454.80

Finding the Fourth Proportional to 1,287,414.18, 1,776,638.46 and 714,454.80

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Solution

The fourth proportional to 1,287,414.18, 1,776,638.46 and 714,454.80 is: 985,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,414.18 : 1,776,638.46 = 714,454.80 : x
  2. Step 2: Convert to fraction form
    1,287,414.18/1,776,638.46 = 714,454.80/x
  3. Step 3: Cross multiply
    1,287,414.18x = 1,776,638.46 × 714,454.80
  4. Step 4: Simplify right side
    1,287,414.18x = 1,269,327,875,611.61
  5. Step 5: Solve for x
    x = 1,269,327,875,611.61/1,287,414.18
  6. Step 6: Final answer
    x = 985,951.45

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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.