Home / 839,363.20-1,259,416.64-439,908.48

Finding the Fourth Proportional to 839,363.20, 1,259,416.64 and 439,908.48

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Solution

The fourth proportional to 839,363.20, 1,259,416.64 and 439,908.48 is: 660,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,363.20 : 1,259,416.64 = 439,908.48 : x
  2. Step 2: Convert to fraction form
    839,363.20/1,259,416.64 = 439,908.48/x
  3. Step 3: Cross multiply
    839,363.20x = 1,259,416.64 × 439,908.48
  4. Step 4: Simplify right side
    839,363.20x = 554,028,059,789.11
  5. Step 5: Solve for x
    x = 554,028,059,789.11/839,363.20
  6. Step 6: Final answer
    x = 660,057.60

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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.