Home / 697,789.60-1,047,913.20-540,400.80

Finding the Fourth Proportional to 697,789.60, 1,047,913.20 and 540,400.80

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Solution

The fourth proportional to 697,789.60, 1,047,913.20 and 540,400.80 is: 811,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,789.60 : 1,047,913.20 = 540,400.80 : x
  2. Step 2: Convert to fraction form
    697,789.60/1,047,913.20 = 540,400.80/x
  3. Step 3: Cross multiply
    697,789.60x = 1,047,913.20 × 540,400.80
  4. Step 4: Simplify right side
    697,789.60x = 566,293,131,610.56
  5. Step 5: Solve for x
    x = 566,293,131,610.56/697,789.60
  6. Step 6: Final answer
    x = 811,552.84

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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.