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Finding the Fourth Proportional to 559,645.38, 772,316.08 and 305,002.04

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Solution

The fourth proportional to 559,645.38, 772,316.08 and 305,002.04 is: 420,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,645.38 : 772,316.08 = 305,002.04 : x
  2. Step 2: Convert to fraction form
    559,645.38/772,316.08 = 305,002.04/x
  3. Step 3: Cross multiply
    559,645.38x = 772,316.08 × 305,002.04
  4. Step 4: Simplify right side
    559,645.38x = 235,557,979,924.80
  5. Step 5: Solve for x
    x = 235,557,979,924.80/559,645.38
  6. Step 6: Final answer
    x = 420,905.79

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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.