Home / 972,180.80-1,458,271.20-439,719.20

Finding the Fourth Proportional to 972,180.80, 1,458,271.20 and 439,719.20

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Solution

The fourth proportional to 972,180.80, 1,458,271.20 and 439,719.20 is: 659,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,180.80 : 1,458,271.20 = 439,719.20 : x
  2. Step 2: Convert to fraction form
    972,180.80/1,458,271.20 = 439,719.20/x
  3. Step 3: Cross multiply
    972,180.80x = 1,458,271.20 × 439,719.20
  4. Step 4: Simplify right side
    972,180.80x = 641,229,845,447.04
  5. Step 5: Solve for x
    x = 641,229,845,447.04/972,180.80
  6. Step 6: Final answer
    x = 659,578.80

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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.