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Finding the Fourth Proportional to 559,215.72, 771,726.48 and 304,566.72

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Solution

The fourth proportional to 559,215.72, 771,726.48 and 304,566.72 is: 420,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,215.72 : 771,726.48 = 304,566.72 : x
  2. Step 2: Convert to fraction form
    559,215.72/771,726.48 = 304,566.72/x
  3. Step 3: Cross multiply
    559,215.72x = 771,726.48 × 304,566.72
  4. Step 4: Simplify right side
    559,215.72x = 235,042,202,750.75
  5. Step 5: Solve for x
    x = 235,042,202,750.75/559,215.72
  6. Step 6: Final answer
    x = 420,306.86

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1.5x scale

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.