Home / 1,787,320.11-2,680,956.81-439,494.39

Finding the Fourth Proportional to 1,787,320.11, 2,680,956.81 and 439,494.39

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Solution

The fourth proportional to 1,787,320.11, 2,680,956.81 and 439,494.39 is: 659,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,320.11 : 2,680,956.81 = 439,494.39 : x
  2. Step 2: Convert to fraction form
    1,787,320.11/2,680,956.81 = 439,494.39/x
  3. Step 3: Cross multiply
    1,787,320.11x = 2,680,956.81 × 439,494.39
  4. Step 4: Simplify right side
    1,787,320.11x = 1,178,265,477,827.30
  5. Step 5: Solve for x
    x = 1,178,265,477,827.30/1,787,320.11
  6. Step 6: Final answer
    x = 659,235.84

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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.