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Finding the Fourth Proportional to 662,693.80, 994,040.70 and 307,589.80

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Solution

The fourth proportional to 662,693.80, 994,040.70 and 307,589.80 is: 461,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,693.80 : 994,040.70 = 307,589.80 : x
  2. Step 2: Convert to fraction form
    662,693.80/994,040.70 = 307,589.80/x
  3. Step 3: Cross multiply
    662,693.80x = 994,040.70 × 307,589.80
  4. Step 4: Simplify right side
    662,693.80x = 305,756,780,104.86
  5. Step 5: Solve for x
    x = 305,756,780,104.86/662,693.80
  6. Step 6: Final answer
    x = 461,384.70

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Similar ratio
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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.