Home / 1,121,972.80-1,548,380.48-686,253.56

Finding the Fourth Proportional to 1,121,972.80, 1,548,380.48 and 686,253.56

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Solution

The fourth proportional to 1,121,972.80, 1,548,380.48 and 686,253.56 is: 947,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,972.80 : 1,548,380.48 = 686,253.56 : x
  2. Step 2: Convert to fraction form
    1,121,972.80/1,548,380.48 = 686,253.56/x
  3. Step 3: Cross multiply
    1,121,972.80x = 1,548,380.48 × 686,253.56
  4. Step 4: Simplify right side
    1,121,972.80x = 1,062,581,616,634.51
  5. Step 5: Solve for x
    x = 1,062,581,616,634.51/1,121,972.80
  6. Step 6: Final answer
    x = 947,065.40

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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.