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Finding the Fourth Proportional to 539,009.40, 806,958.90 and 483,022.20

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Solution

The fourth proportional to 539,009.40, 806,958.90 and 483,022.20 is: 723,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,009.40 : 806,958.90 = 483,022.20 : x
  2. Step 2: Convert to fraction form
    539,009.40/806,958.90 = 483,022.20/x
  3. Step 3: Cross multiply
    539,009.40x = 806,958.90 × 483,022.20
  4. Step 4: Simplify right side
    539,009.40x = 389,779,063,187.58
  5. Step 5: Solve for x
    x = 389,779,063,187.58/539,009.40
  6. Step 6: Final answer
    x = 723,139.64

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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.