Home / 1,227,557.80-1,838,226.30-978,725.80

Finding the Fourth Proportional to 1,227,557.80, 1,838,226.30 and 978,725.80

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Solution

The fourth proportional to 1,227,557.80, 1,838,226.30 and 978,725.80 is: 1,465,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,557.80 : 1,838,226.30 = 978,725.80 : x
  2. Step 2: Convert to fraction form
    1,227,557.80/1,838,226.30 = 978,725.80/x
  3. Step 3: Cross multiply
    1,227,557.80x = 1,838,226.30 × 978,725.80
  4. Step 4: Simplify right side
    1,227,557.80x = 1,799,119,506,048.54
  5. Step 5: Solve for x
    x = 1,799,119,506,048.54/1,227,557.80
  6. Step 6: Final answer
    x = 1,465,608.79

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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.