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Finding the Fourth Proportional to 552,897.05, 763,022.45 and 311,195.27

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Solution

The fourth proportional to 552,897.05, 763,022.45 and 311,195.27 is: 429,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,897.05 : 763,022.45 = 311,195.27 : x
  2. Step 2: Convert to fraction form
    552,897.05/763,022.45 = 311,195.27/x
  3. Step 3: Cross multiply
    552,897.05x = 763,022.45 × 311,195.27
  4. Step 4: Simplify right side
    552,897.05x = 237,448,980,029.36
  5. Step 5: Solve for x
    x = 237,448,980,029.36/552,897.05
  6. Step 6: Final answer
    x = 429,463.28

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1.5x scale

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.