Home / 2,139,626.40-3,209,585.40-680,557.20

Finding the Fourth Proportional to 2,139,626.40, 3,209,585.40 and 680,557.20

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Solution

The fourth proportional to 2,139,626.40, 3,209,585.40 and 680,557.20 is: 1,020,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,626.40 : 3,209,585.40 = 680,557.20 : x
  2. Step 2: Convert to fraction form
    2,139,626.40/3,209,585.40 = 680,557.20/x
  3. Step 3: Cross multiply
    2,139,626.40x = 3,209,585.40 × 680,557.20
  4. Step 4: Simplify right side
    2,139,626.40x = 2,184,306,452,984.88
  5. Step 5: Solve for x
    x = 2,184,306,452,984.88/2,139,626.40
  6. Step 6: Final answer
    x = 1,020,882.18

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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.