Home / 972,177.80-1,458,266.70-439,716.20

Finding the Fourth Proportional to 972,177.80, 1,458,266.70 and 439,716.20

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Solution

The fourth proportional to 972,177.80, 1,458,266.70 and 439,716.20 is: 659,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,177.80 : 1,458,266.70 = 439,716.20 : x
  2. Step 2: Convert to fraction form
    972,177.80/1,458,266.70 = 439,716.20/x
  3. Step 3: Cross multiply
    972,177.80x = 1,458,266.70 × 439,716.20
  4. Step 4: Simplify right side
    972,177.80x = 641,223,491,910.54
  5. Step 5: Solve for x
    x = 641,223,491,910.54/972,177.80
  6. Step 6: Final answer
    x = 659,574.30

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1.5x scale

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.