Home / 1,227,592.80-1,838,278.80-978,760.80

Finding the Fourth Proportional to 1,227,592.80, 1,838,278.80 and 978,760.80

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Solution

The fourth proportional to 1,227,592.80, 1,838,278.80 and 978,760.80 is: 1,465,661.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,592.80 : 1,838,278.80 = 978,760.80 : x
  2. Step 2: Convert to fraction form
    1,227,592.80/1,838,278.80 = 978,760.80/x
  3. Step 3: Cross multiply
    1,227,592.80x = 1,838,278.80 × 978,760.80
  4. Step 4: Simplify right side
    1,227,592.80x = 1,799,235,228,911.04
  5. Step 5: Solve for x
    x = 1,799,235,228,911.04/1,227,592.80
  6. Step 6: Final answer
    x = 1,465,661.28

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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.