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Finding the Fourth Proportional to 657,614.72, 907,489.94 and 371,161.46

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Solution

The fourth proportional to 657,614.72, 907,489.94 and 371,161.46 is: 512,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,614.72 : 907,489.94 = 371,161.46 : x
  2. Step 2: Convert to fraction form
    657,614.72/907,489.94 = 371,161.46/x
  3. Step 3: Cross multiply
    657,614.72x = 907,489.94 × 371,161.46
  4. Step 4: Simplify right side
    657,614.72x = 336,825,291,478.63
  5. Step 5: Solve for x
    x = 336,825,291,478.63/657,614.72
  6. Step 6: Final answer
    x = 512,192.44

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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.