Home / 839,311.32-1,259,339.16-439,857.24

Finding the Fourth Proportional to 839,311.32, 1,259,339.16 and 439,857.24

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Solution

The fourth proportional to 839,311.32, 1,259,339.16 and 439,857.24 is: 659,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,311.32 : 1,259,339.16 = 439,857.24 : x
  2. Step 2: Convert to fraction form
    839,311.32/1,259,339.16 = 439,857.24/x
  3. Step 3: Cross multiply
    839,311.32x = 1,259,339.16 × 439,857.24
  4. Step 4: Simplify right side
    839,311.32x = 553,929,447,141.52
  5. Step 5: Solve for x
    x = 553,929,447,141.52/839,311.32
  6. Step 6: Final answer
    x = 659,980.91

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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.