Home / 1,471,129.08-2,206,689.76-391,641.67

Finding the Fourth Proportional to 1,471,129.08, 2,206,689.76 and 391,641.67

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Solution

The fourth proportional to 1,471,129.08, 2,206,689.76 and 391,641.67 is: 587,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471,129.08 : 2,206,689.76 = 391,641.67 : x
  2. Step 2: Convert to fraction form
    1,471,129.08/2,206,689.76 = 391,641.67/x
  3. Step 3: Cross multiply
    1,471,129.08x = 2,206,689.76 × 391,641.67
  4. Step 4: Simplify right side
    1,471,129.08x = 864,231,662,778.30
  5. Step 5: Solve for x
    x = 864,231,662,778.30/1,471,129.08
  6. Step 6: Final answer
    x = 587,461.48

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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.