Home / 1,298,422.22-1,791,915.39-717,632.88

Finding the Fourth Proportional to 1,298,422.22, 1,791,915.39 and 717,632.88

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Solution

The fourth proportional to 1,298,422.22, 1,791,915.39 and 717,632.88 is: 990,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,422.22 : 1,791,915.39 = 717,632.88 : x
  2. Step 2: Convert to fraction form
    1,298,422.22/1,791,915.39 = 717,632.88/x
  3. Step 3: Cross multiply
    1,298,422.22x = 1,791,915.39 × 717,632.88
  4. Step 4: Simplify right side
    1,298,422.22x = 1,285,937,402,042.02
  5. Step 5: Solve for x
    x = 1,285,937,402,042.02/1,298,422.22
  6. Step 6: Final answer
    x = 990,384.62

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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.