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Finding the Fourth Proportional to 661,375.40, 912,694.23 and 367,022.16

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Solution

The fourth proportional to 661,375.40, 912,694.23 and 367,022.16 is: 506,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,375.40 : 912,694.23 = 367,022.16 : x
  2. Step 2: Convert to fraction form
    661,375.40/912,694.23 = 367,022.16/x
  3. Step 3: Cross multiply
    661,375.40x = 912,694.23 × 367,022.16
  4. Step 4: Simplify right side
    661,375.40x = 334,979,007,714.14
  5. Step 5: Solve for x
    x = 334,979,007,714.14/661,375.40
  6. Step 6: Final answer
    x = 506,488.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.