Home / 860,814.54-1,291,378.55-284,470.79

Finding the Fourth Proportional to 860,814.54, 1,291,378.55 and 284,470.79

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Solution

The fourth proportional to 860,814.54, 1,291,378.55 and 284,470.79 is: 426,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,814.54 : 1,291,378.55 = 284,470.79 : x
  2. Step 2: Convert to fraction form
    860,814.54/1,291,378.55 = 284,470.79/x
  3. Step 3: Cross multiply
    860,814.54x = 1,291,378.55 × 284,470.79
  4. Step 4: Simplify right side
    860,814.54x = 367,359,468,428.31
  5. Step 5: Solve for x
    x = 367,359,468,428.31/860,814.54
  6. Step 6: Final answer
    x = 426,757.97

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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.