Home / 700,854.55-1,047,441.89-511,713.68

Finding the Fourth Proportional to 700,854.55, 1,047,441.89 and 511,713.68

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Solution

The fourth proportional to 700,854.55, 1,047,441.89 and 511,713.68 is: 764,766.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,854.55 : 1,047,441.89 = 511,713.68 : x
  2. Step 2: Convert to fraction form
    700,854.55/1,047,441.89 = 511,713.68/x
  3. Step 3: Cross multiply
    700,854.55x = 1,047,441.89 × 511,713.68
  4. Step 4: Simplify right side
    700,854.55x = 535,990,340,160.13
  5. Step 5: Solve for x
    x = 535,990,340,160.13/700,854.55
  6. Step 6: Final answer
    x = 764,766.87

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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.