Home / 672,979.20-1,010,343.60-540,009.60

Finding the Fourth Proportional to 672,979.20, 1,010,343.60 and 540,009.60

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Solution

The fourth proportional to 672,979.20, 1,010,343.60 and 540,009.60 is: 810,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,979.20 : 1,010,343.60 = 540,009.60 : x
  2. Step 2: Convert to fraction form
    672,979.20/1,010,343.60 = 540,009.60/x
  3. Step 3: Cross multiply
    672,979.20x = 1,010,343.60 × 540,009.60
  4. Step 4: Simplify right side
    672,979.20x = 545,595,243,298.56
  5. Step 5: Solve for x
    x = 545,595,243,298.56/672,979.20
  6. Step 6: Final answer
    x = 810,716.35

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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.