Home / 1,008,210.30-1,512,315.45-931,227.90

Finding the Fourth Proportional to 1,008,210.30, 1,512,315.45 and 931,227.90

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Solution

The fourth proportional to 1,008,210.30, 1,512,315.45 and 931,227.90 is: 1,396,841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,210.30 : 1,512,315.45 = 931,227.90 : x
  2. Step 2: Convert to fraction form
    1,008,210.30/1,512,315.45 = 931,227.90/x
  3. Step 3: Cross multiply
    1,008,210.30x = 1,512,315.45 × 931,227.90
  4. Step 4: Simplify right side
    1,008,210.30x = 1,408,310,340,641.06
  5. Step 5: Solve for x
    x = 1,408,310,340,641.06/1,008,210.30
  6. Step 6: Final answer
    x = 1,396,841.85

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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.