Home / 479,743.40-719,374.44-159,782.78

Finding the Fourth Proportional to 479,743.40, 719,374.44 and 159,782.78

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Solution

The fourth proportional to 479,743.40, 719,374.44 and 159,782.78 is: 239,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,743.40 : 719,374.44 = 159,782.78 : x
  2. Step 2: Convert to fraction form
    479,743.40/719,374.44 = 159,782.78/x
  3. Step 3: Cross multiply
    479,743.40x = 719,374.44 × 159,782.78
  4. Step 4: Simplify right side
    479,743.40x = 114,943,648,314.83
  5. Step 5: Solve for x
    x = 114,943,648,314.83/479,743.40
  6. Step 6: Final answer
    x = 239,594.02

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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.