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Finding the Fourth Proportional to 483,123.60, 723,810.60 and 413,139.60

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Solution

The fourth proportional to 483,123.60, 723,810.60 and 413,139.60 is: 618,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,123.60 : 723,810.60 = 413,139.60 : x
  2. Step 2: Convert to fraction form
    483,123.60/723,810.60 = 413,139.60/x
  3. Step 3: Cross multiply
    483,123.60x = 723,810.60 × 413,139.60
  4. Step 4: Simplify right side
    483,123.60x = 299,034,821,759.76
  5. Step 5: Solve for x
    x = 299,034,821,759.76/483,123.60
  6. Step 6: Final answer
    x = 618,961.32

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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.