Home / 2,126,116.92-3,187,369.05-989,539.17

Finding the Fourth Proportional to 2,126,116.92, 3,187,369.05 and 989,539.17

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Solution

The fourth proportional to 2,126,116.92, 3,187,369.05 and 989,539.17 is: 1,483,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,116.92 : 3,187,369.05 = 989,539.17 : x
  2. Step 2: Convert to fraction form
    2,126,116.92/3,187,369.05 = 989,539.17/x
  3. Step 3: Cross multiply
    2,126,116.92x = 3,187,369.05 × 989,539.17
  4. Step 4: Simplify right side
    2,126,116.92x = 3,154,026,524,220.69
  5. Step 5: Solve for x
    x = 3,154,026,524,220.69/2,126,116.92
  6. Step 6: Final answer
    x = 1,483,468.05

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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.