Home / 2,187,001.20-3,280,501.80-1,122,150.90

Finding the Fourth Proportional to 2,187,001.20, 3,280,501.80 and 1,122,150.90

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Solution

The fourth proportional to 2,187,001.20, 3,280,501.80 and 1,122,150.90 is: 1,683,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,001.20 : 3,280,501.80 = 1,122,150.90 : x
  2. Step 2: Convert to fraction form
    2,187,001.20/3,280,501.80 = 1,122,150.90/x
  3. Step 3: Cross multiply
    2,187,001.20x = 3,280,501.80 × 1,122,150.90
  4. Step 4: Simplify right side
    2,187,001.20x = 3,681,218,047,321.62
  5. Step 5: Solve for x
    x = 3,681,218,047,321.62/2,187,001.20
  6. Step 6: Final answer
    x = 1,683,226.35

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1.5x scale

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.