Home / 1,577,320.80-2,365,981.20-1,325,378.40

Finding the Fourth Proportional to 1,577,320.80, 2,365,981.20 and 1,325,378.40

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Solution

The fourth proportional to 1,577,320.80, 2,365,981.20 and 1,325,378.40 is: 1,988,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577,320.80 : 2,365,981.20 = 1,325,378.40 : x
  2. Step 2: Convert to fraction form
    1,577,320.80/2,365,981.20 = 1,325,378.40/x
  3. Step 3: Cross multiply
    1,577,320.80x = 2,365,981.20 × 1,325,378.40
  4. Step 4: Simplify right side
    1,577,320.80x = 3,135,820,377,286.08
  5. Step 5: Solve for x
    x = 3,135,820,377,286.08/1,577,320.80
  6. Step 6: Final answer
    x = 1,988,067.60

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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.