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Finding the Fourth Proportional to 635,320.32, 876,770.64 and 380,666.04

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Solution

The fourth proportional to 635,320.32, 876,770.64 and 380,666.04 is: 525,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,320.32 : 876,770.64 = 380,666.04 : x
  2. Step 2: Convert to fraction form
    635,320.32/876,770.64 = 380,666.04/x
  3. Step 3: Cross multiply
    635,320.32x = 876,770.64 × 380,666.04
  4. Step 4: Simplify right side
    635,320.32x = 333,756,807,517.07
  5. Step 5: Solve for x
    x = 333,756,807,517.07/635,320.32
  6. Step 6: Final answer
    x = 525,336.27

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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.