Home / 872,824.95-1,204,513.11-485,671.28

Finding the Fourth Proportional to 872,824.95, 1,204,513.11 and 485,671.28

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Solution

The fourth proportional to 872,824.95, 1,204,513.11 and 485,671.28 is: 670,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,824.95 : 1,204,513.11 = 485,671.28 : x
  2. Step 2: Convert to fraction form
    872,824.95/1,204,513.11 = 485,671.28/x
  3. Step 3: Cross multiply
    872,824.95x = 1,204,513.11 × 485,671.28
  4. Step 4: Simplify right side
    872,824.95x = 584,997,417,887.92
  5. Step 5: Solve for x
    x = 584,997,417,887.92/872,824.95
  6. Step 6: Final answer
    x = 670,234.53

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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.