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Finding the Fourth Proportional to 347,764.34, 479,443.59 and 297,318.96

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Solution

The fourth proportional to 347,764.34, 479,443.59 and 297,318.96 is: 409,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,764.34 : 479,443.59 = 297,318.96 : x
  2. Step 2: Convert to fraction form
    347,764.34/479,443.59 = 297,318.96/x
  3. Step 3: Cross multiply
    347,764.34x = 479,443.59 × 297,318.96
  4. Step 4: Simplify right side
    347,764.34x = 142,547,669,557.47
  5. Step 5: Solve for x
    x = 142,547,669,557.47/347,764.34
  6. Step 6: Final answer
    x = 409,897.32

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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.