Home / 878,255.12-1,319,146.20-523,961.36

Finding the Fourth Proportional to 878,255.12, 1,319,146.20 and 523,961.36

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Solution

The fourth proportional to 878,255.12, 1,319,146.20 and 523,961.36 is: 786,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,255.12 : 1,319,146.20 = 523,961.36 : x
  2. Step 2: Convert to fraction form
    878,255.12/1,319,146.20 = 523,961.36/x
  3. Step 3: Cross multiply
    878,255.12x = 1,319,146.20 × 523,961.36
  4. Step 4: Simplify right side
    878,255.12x = 691,181,636,990.83
  5. Step 5: Solve for x
    x = 691,181,636,990.83/878,255.12
  6. Step 6: Final answer
    x = 786,994.14

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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.