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Finding the Fourth Proportional to 559,507.30, 772,120.18 and 304,858.49

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Solution

The fourth proportional to 559,507.30, 772,120.18 and 304,858.49 is: 420,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,507.30 : 772,120.18 = 304,858.49 : x
  2. Step 2: Convert to fraction form
    559,507.30/772,120.18 = 304,858.49/x
  3. Step 3: Cross multiply
    559,507.30x = 772,120.18 × 304,858.49
  4. Step 4: Simplify right side
    559,507.30x = 235,387,388,693.80
  5. Step 5: Solve for x
    x = 235,387,388,693.80/559,507.30
  6. Step 6: Final answer
    x = 420,704.77

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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.