Home / 780,176.18-1,170,488.43-324,678.75

Finding the Fourth Proportional to 780,176.18, 1,170,488.43 and 324,678.75

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Solution

The fourth proportional to 780,176.18, 1,170,488.43 and 324,678.75 is: 487,111.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,176.18 : 1,170,488.43 = 324,678.75 : x
  2. Step 2: Convert to fraction form
    780,176.18/1,170,488.43 = 324,678.75/x
  3. Step 3: Cross multiply
    780,176.18x = 1,170,488.43 × 324,678.75
  4. Step 4: Simplify right side
    780,176.18x = 380,032,720,341.86
  5. Step 5: Solve for x
    x = 380,032,720,341.86/780,176.18
  6. Step 6: Final answer
    x = 487,111.41

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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.