Home / 481,880.10-722,820.15-257,931.30

Finding the Fourth Proportional to 481,880.10, 722,820.15 and 257,931.30

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Solution

The fourth proportional to 481,880.10, 722,820.15 and 257,931.30 is: 386,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,880.10 : 722,820.15 = 257,931.30 : x
  2. Step 2: Convert to fraction form
    481,880.10/722,820.15 = 257,931.30/x
  3. Step 3: Cross multiply
    481,880.10x = 722,820.15 × 257,931.30
  4. Step 4: Simplify right side
    481,880.10x = 186,437,940,955.70
  5. Step 5: Solve for x
    x = 186,437,940,955.70/481,880.10
  6. Step 6: Final answer
    x = 386,896.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.