Home / 878,253.12-1,319,143.20-523,959.36

Finding the Fourth Proportional to 878,253.12, 1,319,143.20 and 523,959.36

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Solution

The fourth proportional to 878,253.12, 1,319,143.20 and 523,959.36 is: 786,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,253.12 : 1,319,143.20 = 523,959.36 : x
  2. Step 2: Convert to fraction form
    878,253.12/1,319,143.20 = 523,959.36/x
  3. Step 3: Cross multiply
    878,253.12x = 1,319,143.20 × 523,959.36
  4. Step 4: Simplify right side
    878,253.12x = 691,177,426,820.35
  5. Step 5: Solve for x
    x = 691,177,426,820.35/878,253.12
  6. Step 6: Final answer
    x = 786,991.14

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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.