Home / 838,465.22-1,255,864.80-648,425.86

Finding the Fourth Proportional to 838,465.22, 1,255,864.80 and 648,425.86

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Solution

The fourth proportional to 838,465.22, 1,255,864.80 and 648,425.86 is: 971,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,465.22 : 1,255,864.80 = 648,425.86 : x
  2. Step 2: Convert to fraction form
    838,465.22/1,255,864.80 = 648,425.86/x
  3. Step 3: Cross multiply
    838,465.22x = 1,255,864.80 × 648,425.86
  4. Step 4: Simplify right side
    838,465.22x = 814,335,212,275.66
  5. Step 5: Solve for x
    x = 814,335,212,275.66/838,465.22
  6. Step 6: Final answer
    x = 971,221.22

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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.