Home / 1,449,239.40-2,176,191.90-978,013.80

Finding the Fourth Proportional to 1,449,239.40, 2,176,191.90 and 978,013.80

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Solution

The fourth proportional to 1,449,239.40, 2,176,191.90 and 978,013.80 is: 1,468,594.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,239.40 : 2,176,191.90 = 978,013.80 : x
  2. Step 2: Convert to fraction form
    1,449,239.40/2,176,191.90 = 978,013.80/x
  3. Step 3: Cross multiply
    1,449,239.40x = 2,176,191.90 × 978,013.80
  4. Step 4: Simplify right side
    1,449,239.40x = 2,128,345,709,648.22
  5. Step 5: Solve for x
    x = 2,128,345,709,648.22/1,449,239.40
  6. Step 6: Final answer
    x = 1,468,594.98

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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.