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Finding the Fourth Proportional to 400,656.41, 552,905.92 and 219,368.39

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Solution

The fourth proportional to 400,656.41, 552,905.92 and 219,368.39 is: 302,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,656.41 : 552,905.92 = 219,368.39 : x
  2. Step 2: Convert to fraction form
    400,656.41/552,905.92 = 219,368.39/x
  3. Step 3: Cross multiply
    400,656.41x = 552,905.92 × 219,368.39
  4. Step 4: Simplify right side
    400,656.41x = 121,290,079,001.55
  5. Step 5: Solve for x
    x = 121,290,079,001.55/400,656.41
  6. Step 6: Final answer
    x = 302,728.41

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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.