Home / 1,787,322.12-2,680,959.81-439,496.40

Finding the Fourth Proportional to 1,787,322.12, 2,680,959.81 and 439,496.40

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Solution

The fourth proportional to 1,787,322.12, 2,680,959.81 and 439,496.40 is: 659,238.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,322.12 : 2,680,959.81 = 439,496.40 : x
  2. Step 2: Convert to fraction form
    1,787,322.12/2,680,959.81 = 439,496.40/x
  3. Step 3: Cross multiply
    1,787,322.12x = 2,680,959.81 × 439,496.40
  4. Step 4: Simplify right side
    1,787,322.12x = 1,178,272,185,039.68
  5. Step 5: Solve for x
    x = 1,178,272,185,039.68/1,787,322.12
  6. Step 6: Final answer
    x = 659,238.85

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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.