Home / 857,868.59-1,183,847.65-465,395.78

Finding the Fourth Proportional to 857,868.59, 1,183,847.65 and 465,395.78

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Solution

The fourth proportional to 857,868.59, 1,183,847.65 and 465,395.78 is: 642,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,868.59 : 1,183,847.65 = 465,395.78 : x
  2. Step 2: Convert to fraction form
    857,868.59/1,183,847.65 = 465,395.78/x
  3. Step 3: Cross multiply
    857,868.59x = 1,183,847.65 × 465,395.78
  4. Step 4: Simplify right side
    857,868.59x = 550,957,693,390.19
  5. Step 5: Solve for x
    x = 550,957,693,390.19/857,868.59
  6. Step 6: Final answer
    x = 642,240.20

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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.