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Finding the Fourth Proportional to 699,614.40, 981,326.40 and 699,614.40

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Solution

The fourth proportional to 699,614.40, 981,326.40 and 699,614.40 is: 981,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,614.40 : 981,326.40 = 699,614.40 : x
  2. Step 2: Convert to fraction form
    699,614.40/981,326.40 = 699,614.40/x
  3. Step 3: Cross multiply
    699,614.40x = 981,326.40 × 699,614.40
  4. Step 4: Simplify right side
    699,614.40x = 686,550,080,540.16
  5. Step 5: Solve for x
    x = 686,550,080,540.16/699,614.40
  6. Step 6: Final answer
    x = 981,326.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.