Home / 1,586,580.60-2,381,231.70-640,630.20

Finding the Fourth Proportional to 1,586,580.60, 2,381,231.70 and 640,630.20

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Solution

The fourth proportional to 1,586,580.60, 2,381,231.70 and 640,630.20 is: 961,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,580.60 : 2,381,231.70 = 640,630.20 : x
  2. Step 2: Convert to fraction form
    1,586,580.60/2,381,231.70 = 640,630.20/x
  3. Step 3: Cross multiply
    1,586,580.60x = 2,381,231.70 × 640,630.20
  4. Step 4: Simplify right side
    1,586,580.60x = 1,525,488,940,217.34
  5. Step 5: Solve for x
    x = 1,525,488,940,217.34/1,586,580.60
  6. Step 6: Final answer
    x = 961,494.76

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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.