Home / 1,787,079.70-2,680,312.35-664,570.90

Finding the Fourth Proportional to 1,787,079.70, 2,680,312.35 and 664,570.90

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Solution

The fourth proportional to 1,787,079.70, 2,680,312.35 and 664,570.90 is: 996,742.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,079.70 : 2,680,312.35 = 664,570.90 : x
  2. Step 2: Convert to fraction form
    1,787,079.70/2,680,312.35 = 664,570.90/x
  3. Step 3: Cross multiply
    1,787,079.70x = 2,680,312.35 × 664,570.90
  4. Step 4: Simplify right side
    1,787,079.70x = 1,781,257,590,720.62
  5. Step 5: Solve for x
    x = 1,781,257,590,720.62/1,787,079.70
  6. Step 6: Final answer
    x = 996,742.11

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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.