Home / 780,220.03-1,170,351.92-381,180.01

Finding the Fourth Proportional to 780,220.03, 1,170,351.92 and 381,180.01

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Solution

The fourth proportional to 780,220.03, 1,170,351.92 and 381,180.01 is: 571,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,220.03 : 1,170,351.92 = 381,180.01 : x
  2. Step 2: Convert to fraction form
    780,220.03/1,170,351.92 = 381,180.01/x
  3. Step 3: Cross multiply
    780,220.03x = 1,170,351.92 × 381,180.01
  4. Step 4: Simplify right side
    780,220.03x = 446,114,756,569.12
  5. Step 5: Solve for x
    x = 446,114,756,569.12/780,220.03
  6. Step 6: Final answer
    x = 571,780.70

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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.