Home / 839,277.32-1,259,288.10-439,823.12

Finding the Fourth Proportional to 839,277.32, 1,259,288.10 and 439,823.12

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Solution

The fourth proportional to 839,277.32, 1,259,288.10 and 439,823.12 is: 659,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,277.32 : 1,259,288.10 = 439,823.12 : x
  2. Step 2: Convert to fraction form
    839,277.32/1,259,288.10 = 439,823.12/x
  3. Step 3: Cross multiply
    839,277.32x = 1,259,288.10 × 439,823.12
  4. Step 4: Simplify right side
    839,277.32x = 553,864,021,120.87
  5. Step 5: Solve for x
    x = 553,864,021,120.87/839,277.32
  6. Step 6: Final answer
    x = 659,929.69

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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.