Home / 821,901.60-1,233,046.80-260,936.10

Finding the Fourth Proportional to 821,901.60, 1,233,046.80 and 260,936.10

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Solution

The fourth proportional to 821,901.60, 1,233,046.80 and 260,936.10 is: 391,465.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,901.60 : 1,233,046.80 = 260,936.10 : x
  2. Step 2: Convert to fraction form
    821,901.60/1,233,046.80 = 260,936.10/x
  3. Step 3: Cross multiply
    821,901.60x = 1,233,046.80 × 260,936.10
  4. Step 4: Simplify right side
    821,901.60x = 321,746,423,109.48
  5. Step 5: Solve for x
    x = 321,746,423,109.48/821,901.60
  6. Step 6: Final answer
    x = 391,465.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.