Home / 872,441.28-1,203,969.12-490,468.80

Finding the Fourth Proportional to 872,441.28, 1,203,969.12 and 490,468.80

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Solution

The fourth proportional to 872,441.28, 1,203,969.12 and 490,468.80 is: 676,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,441.28 : 1,203,969.12 = 490,468.80 : x
  2. Step 2: Convert to fraction form
    872,441.28/1,203,969.12 = 490,468.80/x
  3. Step 3: Cross multiply
    872,441.28x = 1,203,969.12 × 490,468.80
  4. Step 4: Simplify right side
    872,441.28x = 590,509,289,523.46
  5. Step 5: Solve for x
    x = 590,509,289,523.46/872,441.28
  6. Step 6: Final answer
    x = 676,847.03

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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.