Home / 1,227,588.80-1,838,272.80-978,756.80

Finding the Fourth Proportional to 1,227,588.80, 1,838,272.80 and 978,756.80

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Solution

The fourth proportional to 1,227,588.80, 1,838,272.80 and 978,756.80 is: 1,465,655.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,588.80 : 1,838,272.80 = 978,756.80 : x
  2. Step 2: Convert to fraction form
    1,227,588.80/1,838,272.80 = 978,756.80/x
  3. Step 3: Cross multiply
    1,227,588.80x = 1,838,272.80 × 978,756.80
  4. Step 4: Simplify right side
    1,227,588.80x = 1,799,222,003,255.04
  5. Step 5: Solve for x
    x = 1,799,222,003,255.04/1,227,588.80
  6. Step 6: Final answer
    x = 1,465,655.28

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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.