Home / 872,869.06-1,204,461.39-490,887.64

Finding the Fourth Proportional to 872,869.06, 1,204,461.39 and 490,887.64

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Solution

The fourth proportional to 872,869.06, 1,204,461.39 and 490,887.64 is: 677,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,869.06 : 1,204,461.39 = 490,887.64 : x
  2. Step 2: Convert to fraction form
    872,869.06/1,204,461.39 = 490,887.64/x
  3. Step 3: Cross multiply
    872,869.06x = 1,204,461.39 × 490,887.64
  4. Step 4: Simplify right side
    872,869.06x = 591,255,209,208.22
  5. Step 5: Solve for x
    x = 591,255,209,208.22/872,869.06
  6. Step 6: Final answer
    x = 677,369.88

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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.