Home / 1,418,215.70-2,126,999.10-407,329.68

Finding the Fourth Proportional to 1,418,215.70, 2,126,999.10 and 407,329.68

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Solution

The fourth proportional to 1,418,215.70, 2,126,999.10 and 407,329.68 is: 610,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,215.70 : 2,126,999.10 = 407,329.68 : x
  2. Step 2: Convert to fraction form
    1,418,215.70/2,126,999.10 = 407,329.68/x
  3. Step 3: Cross multiply
    1,418,215.70x = 2,126,999.10 × 407,329.68
  4. Step 4: Simplify right side
    1,418,215.70x = 866,389,862,763.29
  5. Step 5: Solve for x
    x = 866,389,862,763.29/1,418,215.70
  6. Step 6: Final answer
    x = 610,901.33

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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.