Home / 820,648.18-1,132,683.42-481,225.78

Finding the Fourth Proportional to 820,648.18, 1,132,683.42 and 481,225.78

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Solution

The fourth proportional to 820,648.18, 1,132,683.42 and 481,225.78 is: 664,202.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,648.18 : 1,132,683.42 = 481,225.78 : x
  2. Step 2: Convert to fraction form
    820,648.18/1,132,683.42 = 481,225.78/x
  3. Step 3: Cross multiply
    820,648.18x = 1,132,683.42 × 481,225.78
  4. Step 4: Simplify right side
    820,648.18x = 545,076,462,282.57
  5. Step 5: Solve for x
    x = 545,076,462,282.57/820,648.18
  6. Step 6: Final answer
    x = 664,202.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.