Home / 878,755.52-1,317,659.02-398,721.37

Finding the Fourth Proportional to 878,755.52, 1,317,659.02 and 398,721.37

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Solution

The fourth proportional to 878,755.52, 1,317,659.02 and 398,721.37 is: 597,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,755.52 : 1,317,659.02 = 398,721.37 : x
  2. Step 2: Convert to fraction form
    878,755.52/1,317,659.02 = 398,721.37/x
  3. Step 3: Cross multiply
    878,755.52x = 1,317,659.02 × 398,721.37
  4. Step 4: Simplify right side
    878,755.52x = 525,378,807,653.65
  5. Step 5: Solve for x
    x = 525,378,807,653.65/878,755.52
  6. Step 6: Final answer
    x = 597,866.87

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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.