Home / 1,388,997.60-2,083,611.60-442,341.60

Finding the Fourth Proportional to 1,388,997.60, 2,083,611.60 and 442,341.60

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Solution

The fourth proportional to 1,388,997.60, 2,083,611.60 and 442,341.60 is: 663,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,997.60 : 2,083,611.60 = 442,341.60 : x
  2. Step 2: Convert to fraction form
    1,388,997.60/2,083,611.60 = 442,341.60/x
  3. Step 3: Cross multiply
    1,388,997.60x = 2,083,611.60 × 442,341.60
  4. Step 4: Simplify right side
    1,388,997.60x = 921,668,088,922.56
  5. Step 5: Solve for x
    x = 921,668,088,922.56/1,388,997.60
  6. Step 6: Final answer
    x = 663,549.09

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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.