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Finding the Fourth Proportional to 559,960.40, 839,940.60 and 402,496.40

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Solution

The fourth proportional to 559,960.40, 839,940.60 and 402,496.40 is: 603,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,960.40 : 839,940.60 = 402,496.40 : x
  2. Step 2: Convert to fraction form
    559,960.40/839,940.60 = 402,496.40/x
  3. Step 3: Cross multiply
    559,960.40x = 839,940.60 × 402,496.40
  4. Step 4: Simplify right side
    559,960.40x = 338,073,067,713.84
  5. Step 5: Solve for x
    x = 338,073,067,713.84/559,960.40
  6. Step 6: Final answer
    x = 603,744.60

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Similar ratio
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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.