Home / 872,799.12-1,204,470-490,822.56

Finding the Fourth Proportional to 872,799.12, 1,204,470 and 490,822.56

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Solution

The fourth proportional to 872,799.12, 1,204,470 and 490,822.56 is: 677,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,799.12 : 1,204,470 = 490,822.56 : x
  2. Step 2: Convert to fraction form
    872,799.12/1,204,470 = 490,822.56/x
  3. Step 3: Cross multiply
    872,799.12x = 1,204,470 × 490,822.56
  4. Step 4: Simplify right side
    872,799.12x = 591,181,048,843.20
  5. Step 5: Solve for x
    x = 591,181,048,843.20/872,799.12
  6. Step 6: Final answer
    x = 677,339.19

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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.