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Finding the Fourth Proportional to 661,710.60, 993,084.30 and 306,768.60

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Solution

The fourth proportional to 661,710.60, 993,084.30 and 306,768.60 is: 460,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,710.60 : 993,084.30 = 306,768.60 : x
  2. Step 2: Convert to fraction form
    661,710.60/993,084.30 = 306,768.60/x
  3. Step 3: Cross multiply
    661,710.60x = 993,084.30 × 306,768.60
  4. Step 4: Simplify right side
    661,710.60x = 304,647,080,392.98
  5. Step 5: Solve for x
    x = 304,647,080,392.98/661,710.60
  6. Step 6: Final answer
    x = 460,393.23

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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.