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Finding the Fourth Proportional to 635,344.32, 876,803.76 and 380,690.04

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Solution

The fourth proportional to 635,344.32, 876,803.76 and 380,690.04 is: 525,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,344.32 : 876,803.76 = 380,690.04 : x
  2. Step 2: Convert to fraction form
    635,344.32/876,803.76 = 380,690.04/x
  3. Step 3: Cross multiply
    635,344.32x = 876,803.76 × 380,690.04
  4. Step 4: Simplify right side
    635,344.32x = 333,790,458,466.55
  5. Step 5: Solve for x
    x = 333,790,458,466.55/635,344.32
  6. Step 6: Final answer
    x = 525,369.39

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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.