Home / 1,137,456.20-1,569,698.74-628,158.57

Finding the Fourth Proportional to 1,137,456.20, 1,569,698.74 and 628,158.57

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Solution

The fourth proportional to 1,137,456.20, 1,569,698.74 and 628,158.57 is: 866,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,456.20 : 1,569,698.74 = 628,158.57 : x
  2. Step 2: Convert to fraction form
    1,137,456.20/1,569,698.74 = 628,158.57/x
  3. Step 3: Cross multiply
    1,137,456.20x = 1,569,698.74 × 628,158.57
  4. Step 4: Simplify right side
    1,137,456.20x = 986,019,712,708.41
  5. Step 5: Solve for x
    x = 986,019,712,708.41/1,137,456.20
  6. Step 6: Final answer
    x = 866,863.90

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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.