Home / 863,669.48-1,191,865.47-481,720.87

Finding the Fourth Proportional to 863,669.48, 1,191,865.47 and 481,720.87

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Solution

The fourth proportional to 863,669.48, 1,191,865.47 and 481,720.87 is: 664,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,669.48 : 1,191,865.47 = 481,720.87 : x
  2. Step 2: Convert to fraction form
    863,669.48/1,191,865.47 = 481,720.87/x
  3. Step 3: Cross multiply
    863,669.48x = 1,191,865.47 × 481,720.87
  4. Step 4: Simplify right side
    863,669.48x = 574,146,465,172.03
  5. Step 5: Solve for x
    x = 574,146,465,172.03/863,669.48
  6. Step 6: Final answer
    x = 664,775.68

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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.