Home / 886,440.06-1,329,870.69-287,401.68

Finding the Fourth Proportional to 886,440.06, 1,329,870.69 and 287,401.68

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Solution

The fourth proportional to 886,440.06, 1,329,870.69 and 287,401.68 is: 431,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,440.06 : 1,329,870.69 = 287,401.68 : x
  2. Step 2: Convert to fraction form
    886,440.06/1,329,870.69 = 287,401.68/x
  3. Step 3: Cross multiply
    886,440.06x = 1,329,870.69 × 287,401.68
  4. Step 4: Simplify right side
    886,440.06x = 382,207,070,488.76
  5. Step 5: Solve for x
    x = 382,207,070,488.76/886,440.06
  6. Step 6: Final answer
    x = 431,170.80

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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.