Home / 838,066.80-1,257,100.20-438,829.95

Finding the Fourth Proportional to 838,066.80, 1,257,100.20 and 438,829.95

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Solution

The fourth proportional to 838,066.80, 1,257,100.20 and 438,829.95 is: 658,244.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,066.80 : 1,257,100.20 = 438,829.95 : x
  2. Step 2: Convert to fraction form
    838,066.80/1,257,100.20 = 438,829.95/x
  3. Step 3: Cross multiply
    838,066.80x = 1,257,100.20 × 438,829.95
  4. Step 4: Simplify right side
    838,066.80x = 551,653,217,910.99
  5. Step 5: Solve for x
    x = 551,653,217,910.99/838,066.80
  6. Step 6: Final answer
    x = 658,244.93

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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.