Home / 1,386,410.32-2,079,861.18-628,221.16

Finding the Fourth Proportional to 1,386,410.32, 2,079,861.18 and 628,221.16

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Solution

The fourth proportional to 1,386,410.32, 2,079,861.18 and 628,221.16 is: 942,443.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,410.32 : 2,079,861.18 = 628,221.16 : x
  2. Step 2: Convert to fraction form
    1,386,410.32/2,079,861.18 = 628,221.16/x
  3. Step 3: Cross multiply
    1,386,410.32x = 2,079,861.18 × 628,221.16
  4. Step 4: Simplify right side
    1,386,410.32x = 1,306,612,803,138.57
  5. Step 5: Solve for x
    x = 1,306,612,803,138.57/1,386,410.32
  6. Step 6: Final answer
    x = 942,443.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.