Home / 1,986,910.40-2,980,810.04-724,738.04

Finding the Fourth Proportional to 1,986,910.40, 2,980,810.04 and 724,738.04

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Solution

The fourth proportional to 1,986,910.40, 2,980,810.04 and 724,738.04 is: 1,087,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,910.40 : 2,980,810.04 = 724,738.04 : x
  2. Step 2: Convert to fraction form
    1,986,910.40/2,980,810.04 = 724,738.04/x
  3. Step 3: Cross multiply
    1,986,910.40x = 2,980,810.04 × 724,738.04
  4. Step 4: Simplify right side
    1,986,910.40x = 2,160,306,426,001.92
  5. Step 5: Solve for x
    x = 2,160,306,426,001.92/1,986,910.40
  6. Step 6: Final answer
    x = 1,087,269.17

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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.