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Finding the Fourth Proportional to 347,020.70, 520,045.05 and 276,064.70

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Solution

The fourth proportional to 347,020.70, 520,045.05 and 276,064.70 is: 413,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,020.70 : 520,045.05 = 276,064.70 : x
  2. Step 2: Convert to fraction form
    347,020.70/520,045.05 = 276,064.70/x
  3. Step 3: Cross multiply
    347,020.70x = 520,045.05 × 276,064.70
  4. Step 4: Simplify right side
    347,020.70x = 143,566,080,714.74
  5. Step 5: Solve for x
    x = 143,566,080,714.74/347,020.70
  6. Step 6: Final answer
    x = 413,710.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.