Home / 1,408,162.78-2,112,623.30-724,677.18

Finding the Fourth Proportional to 1,408,162.78, 2,112,623.30 and 724,677.18

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Solution

The fourth proportional to 1,408,162.78, 2,112,623.30 and 724,677.18 is: 1,087,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,162.78 : 2,112,623.30 = 724,677.18 : x
  2. Step 2: Convert to fraction form
    1,408,162.78/2,112,623.30 = 724,677.18/x
  3. Step 3: Cross multiply
    1,408,162.78x = 2,112,623.30 × 724,677.18
  4. Step 4: Simplify right side
    1,408,162.78x = 1,530,969,901,219.16
  5. Step 5: Solve for x
    x = 1,530,969,901,219.16/1,408,162.78
  6. Step 6: Final answer
    x = 1,087,210.89

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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.