Home / 874,139.93-1,206,350.30-486,954.87

Finding the Fourth Proportional to 874,139.93, 1,206,350.30 and 486,954.87

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Solution

The fourth proportional to 874,139.93, 1,206,350.30 and 486,954.87 is: 672,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,139.93 : 1,206,350.30 = 486,954.87 : x
  2. Step 2: Convert to fraction form
    874,139.93/1,206,350.30 = 486,954.87/x
  3. Step 3: Cross multiply
    874,139.93x = 1,206,350.30 × 486,954.87
  4. Step 4: Simplify right side
    874,139.93x = 587,438,151,076.19
  5. Step 5: Solve for x
    x = 587,438,151,076.19/874,139.93
  6. Step 6: Final answer
    x = 672,018.44

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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.