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Finding the Fourth Proportional to 609,860, 841,606.80 and 371,396

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Solution

The fourth proportional to 609,860, 841,606.80 and 371,396 is: 512,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,860 : 841,606.80 = 371,396 : x
  2. Step 2: Convert to fraction form
    609,860/841,606.80 = 371,396/x
  3. Step 3: Cross multiply
    609,860x = 841,606.80 × 371,396
  4. Step 4: Simplify right side
    609,860x = 312,569,399,092.80
  5. Step 5: Solve for x
    x = 312,569,399,092.80/609,860
  6. Step 6: Final answer
    x = 512,526.48

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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.