Home / 2,187,103.80-3,280,655.70-989,065.20

Finding the Fourth Proportional to 2,187,103.80, 3,280,655.70 and 989,065.20

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Solution

The fourth proportional to 2,187,103.80, 3,280,655.70 and 989,065.20 is: 1,483,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,103.80 : 3,280,655.70 = 989,065.20 : x
  2. Step 2: Convert to fraction form
    2,187,103.80/3,280,655.70 = 989,065.20/x
  3. Step 3: Cross multiply
    2,187,103.80x = 3,280,655.70 × 989,065.20
  4. Step 4: Simplify right side
    2,187,103.80x = 3,244,782,386,051.64
  5. Step 5: Solve for x
    x = 3,244,782,386,051.64/2,187,103.80
  6. Step 6: Final answer
    x = 1,483,597.80

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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.