Home / 872,801.12-1,204,472.76-490,824.56

Finding the Fourth Proportional to 872,801.12, 1,204,472.76 and 490,824.56

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Solution

The fourth proportional to 872,801.12, 1,204,472.76 and 490,824.56 is: 677,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,801.12 : 1,204,472.76 = 490,824.56 : x
  2. Step 2: Convert to fraction form
    872,801.12/1,204,472.76 = 490,824.56/x
  3. Step 3: Cross multiply
    872,801.12x = 1,204,472.76 × 490,824.56
  4. Step 4: Simplify right side
    872,801.12x = 591,184,812,458.99
  5. Step 5: Solve for x
    x = 591,184,812,458.99/872,801.12
  6. Step 6: Final answer
    x = 677,341.95

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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.