Home / 3,138,365.28-4,330,816.56-1,780,209.12

Finding the Fourth Proportional to 3,138,365.28, 4,330,816.56 and 1,780,209.12

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Solution

The fourth proportional to 3,138,365.28, 4,330,816.56 and 1,780,209.12 is: 2,456,616.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,365.28 : 4,330,816.56 = 1,780,209.12 : x
  2. Step 2: Convert to fraction form
    3,138,365.28/4,330,816.56 = 1,780,209.12/x
  3. Step 3: Cross multiply
    3,138,365.28x = 4,330,816.56 × 1,780,209.12
  4. Step 4: Simplify right side
    3,138,365.28x = 7,709,759,137,159.03
  5. Step 5: Solve for x
    x = 7,709,759,137,159.03/3,138,365.28
  6. Step 6: Final answer
    x = 2,456,616.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.