Home / 860,687.24-1,290,141.34-328,065.16

Finding the Fourth Proportional to 860,687.24, 1,290,141.34 and 328,065.16

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Solution

The fourth proportional to 860,687.24, 1,290,141.34 and 328,065.16 is: 491,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,687.24 : 1,290,141.34 = 328,065.16 : x
  2. Step 2: Convert to fraction form
    860,687.24/1,290,141.34 = 328,065.16/x
  3. Step 3: Cross multiply
    860,687.24x = 1,290,141.34 × 328,065.16
  4. Step 4: Simplify right side
    860,687.24x = 423,250,425,129.71
  5. Step 5: Solve for x
    x = 423,250,425,129.71/860,687.24
  6. Step 6: Final answer
    x = 491,758.68

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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.