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Finding the Fourth Proportional to 347,667.48, 520,619.13 and 291,359.52

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Solution

The fourth proportional to 347,667.48, 520,619.13 and 291,359.52 is: 436,300.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,667.48 : 520,619.13 = 291,359.52 : x
  2. Step 2: Convert to fraction form
    347,667.48/520,619.13 = 291,359.52/x
  3. Step 3: Cross multiply
    347,667.48x = 520,619.13 × 291,359.52
  4. Step 4: Simplify right side
    347,667.48x = 151,687,339,819.62
  5. Step 5: Solve for x
    x = 151,687,339,819.62/347,667.48
  6. Step 6: Final answer
    x = 436,300.05

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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.