Home / 1,545,640.56-2,130,519.36-1,218,419.76

Finding the Fourth Proportional to 1,545,640.56, 2,130,519.36 and 1,218,419.76

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Solution

The fourth proportional to 1,545,640.56, 2,130,519.36 and 1,218,419.76 is: 1,679,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545,640.56 : 2,130,519.36 = 1,218,419.76 : x
  2. Step 2: Convert to fraction form
    1,545,640.56/2,130,519.36 = 1,218,419.76/x
  3. Step 3: Cross multiply
    1,545,640.56x = 2,130,519.36 × 1,218,419.76
  4. Step 4: Simplify right side
    1,545,640.56x = 2,595,866,887,286.55
  5. Step 5: Solve for x
    x = 2,595,866,887,286.55/1,545,640.56
  6. Step 6: Final answer
    x = 1,679,476.43

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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.