Home / 452,631.28-677,912.64-216,139.60

Finding the Fourth Proportional to 452,631.28, 677,912.64 and 216,139.60

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Solution

The fourth proportional to 452,631.28, 677,912.64 and 216,139.60 is: 323,715.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,631.28 : 677,912.64 = 216,139.60 : x
  2. Step 2: Convert to fraction form
    452,631.28/677,912.64 = 216,139.60/x
  3. Step 3: Cross multiply
    452,631.28x = 677,912.64 × 216,139.60
  4. Step 4: Simplify right side
    452,631.28x = 146,523,766,844.54
  5. Step 5: Solve for x
    x = 146,523,766,844.54/452,631.28
  6. Step 6: Final answer
    x = 323,715.51

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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.