Home / 712,815.44-984,982.92-678,265.68

Finding the Fourth Proportional to 712,815.44, 984,982.92 and 678,265.68

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Solution

The fourth proportional to 712,815.44, 984,982.92 and 678,265.68 is: 937,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,815.44 : 984,982.92 = 678,265.68 : x
  2. Step 2: Convert to fraction form
    712,815.44/984,982.92 = 678,265.68/x
  3. Step 3: Cross multiply
    712,815.44x = 984,982.92 × 678,265.68
  4. Step 4: Simplify right side
    712,815.44x = 668,080,110,022.19
  5. Step 5: Solve for x
    x = 668,080,110,022.19/712,815.44
  6. Step 6: Final answer
    x = 937,241.36

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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.