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Finding the Fourth Proportional to 635,490.38, 876,973.32 and 345,099.44

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Solution

The fourth proportional to 635,490.38, 876,973.32 and 345,099.44 is: 476,235.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,490.38 : 876,973.32 = 345,099.44 : x
  2. Step 2: Convert to fraction form
    635,490.38/876,973.32 = 345,099.44/x
  3. Step 3: Cross multiply
    635,490.38x = 876,973.32 × 345,099.44
  4. Step 4: Simplify right side
    635,490.38x = 302,643,001,626.94
  5. Step 5: Solve for x
    x = 302,643,001,626.94/635,490.38
  6. Step 6: Final answer
    x = 476,235.38

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1.5x scale

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.