Home / 1,040,911.68-1,560,162.72-478,766.40

Finding the Fourth Proportional to 1,040,911.68, 1,560,162.72 and 478,766.40

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Solution

The fourth proportional to 1,040,911.68, 1,560,162.72 and 478,766.40 is: 717,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,911.68 : 1,560,162.72 = 478,766.40 : x
  2. Step 2: Convert to fraction form
    1,040,911.68/1,560,162.72 = 478,766.40/x
  3. Step 3: Cross multiply
    1,040,911.68x = 1,560,162.72 × 478,766.40
  4. Step 4: Simplify right side
    1,040,911.68x = 746,953,488,868.61
  5. Step 5: Solve for x
    x = 746,953,488,868.61/1,040,911.68
  6. Step 6: Final answer
    x = 717,595.45

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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.