Home / 809,681.64-1,215,263.31-410,597.88

Finding the Fourth Proportional to 809,681.64, 1,215,263.31 and 410,597.88

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Solution

The fourth proportional to 809,681.64, 1,215,263.31 and 410,597.88 is: 616,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,681.64 : 1,215,263.31 = 410,597.88 : x
  2. Step 2: Convert to fraction form
    809,681.64/1,215,263.31 = 410,597.88/x
  3. Step 3: Cross multiply
    809,681.64x = 1,215,263.31 × 410,597.88
  4. Step 4: Simplify right side
    809,681.64x = 498,984,538,727.78
  5. Step 5: Solve for x
    x = 498,984,538,727.78/809,681.64
  6. Step 6: Final answer
    x = 616,272.51

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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.