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Finding the Fourth Proportional to 559,211.65, 771,720.62 and 304,562.84

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Solution

The fourth proportional to 559,211.65, 771,720.62 and 304,562.84 is: 420,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,211.65 : 771,720.62 = 304,562.84 : x
  2. Step 2: Convert to fraction form
    559,211.65/771,720.62 = 304,562.84/x
  3. Step 3: Cross multiply
    559,211.65x = 771,720.62 × 304,562.84
  4. Step 4: Simplify right side
    559,211.65x = 235,037,418,332.34
  5. Step 5: Solve for x
    x = 235,037,418,332.34/559,211.65
  6. Step 6: Final answer
    x = 420,301.36

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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.