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Finding the Fourth Proportional to 559,538.28, 772,161.66 and 304,888.86

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Solution

The fourth proportional to 559,538.28, 772,161.66 and 304,888.86 is: 420,745.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,538.28 : 772,161.66 = 304,888.86 : x
  2. Step 2: Convert to fraction form
    559,538.28/772,161.66 = 304,888.86/x
  3. Step 3: Cross multiply
    559,538.28x = 772,161.66 × 304,888.86
  4. Step 4: Simplify right side
    559,538.28x = 235,423,488,253.11
  5. Step 5: Solve for x
    x = 235,423,488,253.11/559,538.28
  6. Step 6: Final answer
    x = 420,745.99

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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.