Home / 479,582.40-719,373.42-142,621.68

Finding the Fourth Proportional to 479,582.40, 719,373.42 and 142,621.68

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Solution

The fourth proportional to 479,582.40, 719,373.42 and 142,621.68 is: 213,932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,582.40 : 719,373.42 = 142,621.68 : x
  2. Step 2: Convert to fraction form
    479,582.40/719,373.42 = 142,621.68/x
  3. Step 3: Cross multiply
    479,582.40x = 719,373.42 × 142,621.68
  4. Step 4: Simplify right side
    479,582.40x = 102,598,245,707.75
  5. Step 5: Solve for x
    x = 102,598,245,707.75/479,582.40
  6. Step 6: Final answer
    x = 213,932.47

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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.