Home / 1,485,780.70-2,050,385.55-806,717.20

Finding the Fourth Proportional to 1,485,780.70, 2,050,385.55 and 806,717.20

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Solution

The fourth proportional to 1,485,780.70, 2,050,385.55 and 806,717.20 is: 1,113,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,780.70 : 2,050,385.55 = 806,717.20 : x
  2. Step 2: Convert to fraction form
    1,485,780.70/2,050,385.55 = 806,717.20/x
  3. Step 3: Cross multiply
    1,485,780.70x = 2,050,385.55 × 806,717.20
  4. Step 4: Simplify right side
    1,485,780.70x = 1,654,081,289,816.46
  5. Step 5: Solve for x
    x = 1,654,081,289,816.46/1,485,780.70
  6. Step 6: Final answer
    x = 1,113,274.18

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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.