Home / 808,221.84-1,115,294.56-445,648.04

Finding the Fourth Proportional to 808,221.84, 1,115,294.56 and 445,648.04

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Solution

The fourth proportional to 808,221.84, 1,115,294.56 and 445,648.04 is: 614,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,221.84 : 1,115,294.56 = 445,648.04 : x
  2. Step 2: Convert to fraction form
    808,221.84/1,115,294.56 = 445,648.04/x
  3. Step 3: Cross multiply
    808,221.84x = 1,115,294.56 × 445,648.04
  4. Step 4: Simplify right side
    808,221.84x = 497,028,834,686.66
  5. Step 5: Solve for x
    x = 497,028,834,686.66/808,221.84
  6. Step 6: Final answer
    x = 614,965.85

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1.5x scale

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.