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Finding the Fourth Proportional to 559,507.46, 772,120.40 and 304,858.64

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Solution

The fourth proportional to 559,507.46, 772,120.40 and 304,858.64 is: 420,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,507.46 : 772,120.40 = 304,858.64 : x
  2. Step 2: Convert to fraction form
    559,507.46/772,120.40 = 304,858.64/x
  3. Step 3: Cross multiply
    559,507.46x = 772,120.40 × 304,858.64
  4. Step 4: Simplify right side
    559,507.46x = 235,387,569,675.36
  5. Step 5: Solve for x
    x = 235,387,569,675.36/559,507.46
  6. Step 6: Final answer
    x = 420,704.97

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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.