Home / 433,054.47-649,467.90-129,376.56

Finding the Fourth Proportional to 433,054.47, 649,467.90 and 129,376.56

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Solution

The fourth proportional to 433,054.47, 649,467.90 and 129,376.56 is: 194,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,054.47 : 649,467.90 = 129,376.56 : x
  2. Step 2: Convert to fraction form
    433,054.47/649,467.90 = 129,376.56/x
  3. Step 3: Cross multiply
    433,054.47x = 649,467.90 × 129,376.56
  4. Step 4: Simplify right side
    433,054.47x = 84,025,922,732.42
  5. Step 5: Solve for x
    x = 84,025,922,732.42/433,054.47
  6. Step 6: Final answer
    x = 194,030.84

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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.