Home / 712,232.66-982,880.60-389,942.68

Finding the Fourth Proportional to 712,232.66, 982,880.60 and 389,942.68

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Solution

The fourth proportional to 712,232.66, 982,880.60 and 389,942.68 is: 538,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,232.66 : 982,880.60 = 389,942.68 : x
  2. Step 2: Convert to fraction form
    712,232.66/982,880.60 = 389,942.68/x
  3. Step 3: Cross multiply
    712,232.66x = 982,880.60 × 389,942.68
  4. Step 4: Simplify right side
    712,232.66x = 383,267,095,284.01
  5. Step 5: Solve for x
    x = 383,267,095,284.01/712,232.66
  6. Step 6: Final answer
    x = 538,120.64

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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.