Home / 779,951.52-1,169,921.88-218,986.56

Finding the Fourth Proportional to 779,951.52, 1,169,921.88 and 218,986.56

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Solution

The fourth proportional to 779,951.52, 1,169,921.88 and 218,986.56 is: 328,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,951.52 : 1,169,921.88 = 218,986.56 : x
  2. Step 2: Convert to fraction form
    779,951.52/1,169,921.88 = 218,986.56/x
  3. Step 3: Cross multiply
    779,951.52x = 1,169,921.88 × 218,986.56
  4. Step 4: Simplify right side
    779,951.52x = 256,197,167,969.93
  5. Step 5: Solve for x
    x = 256,197,167,969.93/779,951.52
  6. Step 6: Final answer
    x = 328,478.32

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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.