Home / 821,800.25-1,232,823.03-253,133.75

Finding the Fourth Proportional to 821,800.25, 1,232,823.03 and 253,133.75

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Solution

The fourth proportional to 821,800.25, 1,232,823.03 and 253,133.75 is: 379,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,800.25 : 1,232,823.03 = 253,133.75 : x
  2. Step 2: Convert to fraction form
    821,800.25/1,232,823.03 = 253,133.75/x
  3. Step 3: Cross multiply
    821,800.25x = 1,232,823.03 × 253,133.75
  4. Step 4: Simplify right side
    821,800.25x = 312,069,109,240.48
  5. Step 5: Solve for x
    x = 312,069,109,240.48/821,800.25
  6. Step 6: Final answer
    x = 379,738.40

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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.