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Finding the Fourth Proportional to 609,863, 841,610.94 and 371,399

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Solution

The fourth proportional to 609,863, 841,610.94 and 371,399 is: 512,530.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,863 : 841,610.94 = 371,399 : x
  2. Step 2: Convert to fraction form
    609,863/841,610.94 = 371,399/x
  3. Step 3: Cross multiply
    609,863x = 841,610.94 × 371,399
  4. Step 4: Simplify right side
    609,863x = 312,573,461,505.06
  5. Step 5: Solve for x
    x = 312,573,461,505.06/609,863
  6. Step 6: Final answer
    x = 512,530.62

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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.