Home / 821,433.40-1,232,194.14-260,511.64

Finding the Fourth Proportional to 821,433.40, 1,232,194.14 and 260,511.64

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Solution

The fourth proportional to 821,433.40, 1,232,194.14 and 260,511.64 is: 390,781.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,433.40 : 1,232,194.14 = 260,511.64 : x
  2. Step 2: Convert to fraction form
    821,433.40/1,232,194.14 = 260,511.64/x
  3. Step 3: Cross multiply
    821,433.40x = 1,232,194.14 × 260,511.64
  4. Step 4: Simplify right side
    821,433.40x = 321,000,916,209.79
  5. Step 5: Solve for x
    x = 321,000,916,209.79/821,433.40
  6. Step 6: Final answer
    x = 390,781.43

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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.