Home / 780,176.42-1,170,488.80-324,679

Finding the Fourth Proportional to 780,176.42, 1,170,488.80 and 324,679

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Solution

The fourth proportional to 780,176.42, 1,170,488.80 and 324,679 is: 487,111.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,176.42 : 1,170,488.80 = 324,679 : x
  2. Step 2: Convert to fraction form
    780,176.42/1,170,488.80 = 324,679/x
  3. Step 3: Cross multiply
    780,176.42x = 1,170,488.80 × 324,679
  4. Step 4: Simplify right side
    780,176.42x = 380,033,133,095.20
  5. Step 5: Solve for x
    x = 380,033,133,095.20/780,176.42
  6. Step 6: Final answer
    x = 487,111.79

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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.