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Finding the Fourth Proportional to 610,018.51, 914,128.53 and 339,774.43

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Solution

The fourth proportional to 610,018.51, 914,128.53 and 339,774.43 is: 509,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,018.51 : 914,128.53 = 339,774.43 : x
  2. Step 2: Convert to fraction form
    610,018.51/914,128.53 = 339,774.43/x
  3. Step 3: Cross multiply
    610,018.51x = 914,128.53 × 339,774.43
  4. Step 4: Simplify right side
    610,018.51x = 310,597,500,227.49
  5. Step 5: Solve for x
    x = 310,597,500,227.49/610,018.51
  6. Step 6: Final answer
    x = 509,160.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.