Home / 872,485.12-1,204,016.64-485,296.48

Finding the Fourth Proportional to 872,485.12, 1,204,016.64 and 485,296.48

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Solution

The fourth proportional to 872,485.12, 1,204,016.64 and 485,296.48 is: 669,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,485.12 : 1,204,016.64 = 485,296.48 : x
  2. Step 2: Convert to fraction form
    872,485.12/1,204,016.64 = 485,296.48/x
  3. Step 3: Cross multiply
    872,485.12x = 1,204,016.64 × 485,296.48
  4. Step 4: Simplify right side
    872,485.12x = 584,305,037,253.43
  5. Step 5: Solve for x
    x = 584,305,037,253.43/872,485.12
  6. Step 6: Final answer
    x = 669,702.01

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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.