Home / 780,149.10-1,170,337.05-330,869.10

Finding the Fourth Proportional to 780,149.10, 1,170,337.05 and 330,869.10

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Solution

The fourth proportional to 780,149.10, 1,170,337.05 and 330,869.10 is: 496,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,149.10 : 1,170,337.05 = 330,869.10 : x
  2. Step 2: Convert to fraction form
    780,149.10/1,170,337.05 = 330,869.10/x
  3. Step 3: Cross multiply
    780,149.10x = 1,170,337.05 × 330,869.10
  4. Step 4: Simplify right side
    780,149.10x = 387,228,366,430.16
  5. Step 5: Solve for x
    x = 387,228,366,430.16/780,149.10
  6. Step 6: Final answer
    x = 496,351.74

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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.