Home / 1,986,226.80-2,976,278.40-1,478,405.40

Finding the Fourth Proportional to 1,986,226.80, 2,976,278.40 and 1,478,405.40

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Solution

The fourth proportional to 1,986,226.80, 2,976,278.40 and 1,478,405.40 is: 2,215,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,226.80 : 2,976,278.40 = 1,478,405.40 : x
  2. Step 2: Convert to fraction form
    1,986,226.80/2,976,278.40 = 1,478,405.40/x
  3. Step 3: Cross multiply
    1,986,226.80x = 2,976,278.40 × 1,478,405.40
  4. Step 4: Simplify right side
    1,986,226.80x = 4,400,146,058,463.36
  5. Step 5: Solve for x
    x = 4,400,146,058,463.36/1,986,226.80
  6. Step 6: Final answer
    x = 2,215,329.11

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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.