Home / 877,225.26-1,315,884.87-278,231.88

Finding the Fourth Proportional to 877,225.26, 1,315,884.87 and 278,231.88

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Solution

The fourth proportional to 877,225.26, 1,315,884.87 and 278,231.88 is: 417,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,225.26 : 1,315,884.87 = 278,231.88 : x
  2. Step 2: Convert to fraction form
    877,225.26/1,315,884.87 = 278,231.88/x
  3. Step 3: Cross multiply
    877,225.26x = 1,315,884.87 × 278,231.88
  4. Step 4: Simplify right side
    877,225.26x = 366,121,121,243.66
  5. Step 5: Solve for x
    x = 366,121,121,243.66/877,225.26
  6. Step 6: Final answer
    x = 417,362.72

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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.