Home / 478,848.89-717,788.55-310,475.81

Finding the Fourth Proportional to 478,848.89, 717,788.55 and 310,475.81

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Solution

The fourth proportional to 478,848.89, 717,788.55 and 310,475.81 is: 465,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,848.89 : 717,788.55 = 310,475.81 : x
  2. Step 2: Convert to fraction form
    478,848.89/717,788.55 = 310,475.81/x
  3. Step 3: Cross multiply
    478,848.89x = 717,788.55 × 310,475.81
  4. Step 4: Simplify right side
    478,848.89x = 222,855,981,469.98
  5. Step 5: Solve for x
    x = 222,855,981,469.98/478,848.89
  6. Step 6: Final answer
    x = 465,399.39

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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.