Home / 891,909.77-1,230,836.31-509,944.55

Finding the Fourth Proportional to 891,909.77, 1,230,836.31 and 509,944.55

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Solution

The fourth proportional to 891,909.77, 1,230,836.31 and 509,944.55 is: 703,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,909.77 : 1,230,836.31 = 509,944.55 : x
  2. Step 2: Convert to fraction form
    891,909.77/1,230,836.31 = 509,944.55/x
  3. Step 3: Cross multiply
    891,909.77x = 1,230,836.31 × 509,944.55
  4. Step 4: Simplify right side
    891,909.77x = 627,658,262,072.43
  5. Step 5: Solve for x
    x = 627,658,262,072.43/891,909.77
  6. Step 6: Final answer
    x = 703,723.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.