Home / 1,434,154.60-2,151,491.10-722,391.40

Finding the Fourth Proportional to 1,434,154.60, 2,151,491.10 and 722,391.40

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Solution

The fourth proportional to 1,434,154.60, 2,151,491.10 and 722,391.40 is: 1,083,717.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,154.60 : 2,151,491.10 = 722,391.40 : x
  2. Step 2: Convert to fraction form
    1,434,154.60/2,151,491.10 = 722,391.40/x
  3. Step 3: Cross multiply
    1,434,154.60x = 2,151,491.10 × 722,391.40
  4. Step 4: Simplify right side
    1,434,154.60x = 1,554,218,667,816.54
  5. Step 5: Solve for x
    x = 1,554,218,667,816.54/1,434,154.60
  6. Step 6: Final answer
    x = 1,083,717.66

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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.