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Finding the Fourth Proportional to 635,057.79, 876,347.76 and 376,946

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Solution

The fourth proportional to 635,057.79, 876,347.76 and 376,946 is: 520,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,057.79 : 876,347.76 = 376,946 : x
  2. Step 2: Convert to fraction form
    635,057.79/876,347.76 = 376,946/x
  3. Step 3: Cross multiply
    635,057.79x = 876,347.76 × 376,946
  4. Step 4: Simplify right side
    635,057.79x = 330,335,782,740.96
  5. Step 5: Solve for x
    x = 330,335,782,740.96/635,057.79
  6. Step 6: Final answer
    x = 520,166.49

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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.