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Finding the Fourth Proportional to 487,349.08, 731,189.58 and 262,731.22

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Solution

The fourth proportional to 487,349.08, 731,189.58 and 262,731.22 is: 394,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,349.08 : 731,189.58 = 262,731.22 : x
  2. Step 2: Convert to fraction form
    487,349.08/731,189.58 = 262,731.22/x
  3. Step 3: Cross multiply
    487,349.08x = 731,189.58 × 262,731.22
  4. Step 4: Simplify right side
    487,349.08x = 192,106,330,404.69
  5. Step 5: Solve for x
    x = 192,106,330,404.69/487,349.08
  6. Step 6: Final answer
    x = 394,186.30

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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.