Home / 819,819.54-1,221,579.18-730,385.82

Finding the Fourth Proportional to 819,819.54, 1,221,579.18 and 730,385.82

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Solution

The fourth proportional to 819,819.54, 1,221,579.18 and 730,385.82 is: 1,088,317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,819.54 : 1,221,579.18 = 730,385.82 : x
  2. Step 2: Convert to fraction form
    819,819.54/1,221,579.18 = 730,385.82/x
  3. Step 3: Cross multiply
    819,819.54x = 1,221,579.18 × 730,385.82
  4. Step 4: Simplify right side
    819,819.54x = 892,224,111,079.23
  5. Step 5: Solve for x
    x = 892,224,111,079.23/819,819.54
  6. Step 6: Final answer
    x = 1,088,317.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.