Home / 860,612.24-1,291,104.08-261,621.65

Finding the Fourth Proportional to 860,612.24, 1,291,104.08 and 261,621.65

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Solution

The fourth proportional to 860,612.24, 1,291,104.08 and 261,621.65 is: 392,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,612.24 : 1,291,104.08 = 261,621.65 : x
  2. Step 2: Convert to fraction form
    860,612.24/1,291,104.08 = 261,621.65/x
  3. Step 3: Cross multiply
    860,612.24x = 1,291,104.08 × 261,621.65
  4. Step 4: Simplify right side
    860,612.24x = 337,780,773,929.87
  5. Step 5: Solve for x
    x = 337,780,773,929.87/860,612.24
  6. Step 6: Final answer
    x = 392,488.93

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1.5x scale

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.