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Finding the Fourth Proportional to 607,713.91, 838,640.28 and 335,780.71

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Solution

The fourth proportional to 607,713.91, 838,640.28 and 335,780.71 is: 463,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,713.91 : 838,640.28 = 335,780.71 : x
  2. Step 2: Convert to fraction form
    607,713.91/838,640.28 = 335,780.71/x
  3. Step 3: Cross multiply
    607,713.91x = 838,640.28 × 335,780.71
  4. Step 4: Simplify right side
    607,713.91x = 281,599,227,815.58
  5. Step 5: Solve for x
    x = 281,599,227,815.58/607,713.91
  6. Step 6: Final answer
    x = 463,374.66

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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.