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Finding the Fourth Proportional to 347,586.48, 520,497.36 and 291,278.52

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Solution

The fourth proportional to 347,586.48, 520,497.36 and 291,278.52 is: 436,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,586.48 : 520,497.36 = 291,278.52 : x
  2. Step 2: Convert to fraction form
    347,586.48/520,497.36 = 291,278.52/x
  3. Step 3: Cross multiply
    347,586.48x = 520,497.36 × 291,278.52
  4. Step 4: Simplify right side
    347,586.48x = 151,609,700,684.71
  5. Step 5: Solve for x
    x = 151,609,700,684.71/347,586.48
  6. Step 6: Final answer
    x = 436,178.36

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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.