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Finding the Fourth Proportional to 478,943.82, 718,369.08 and 194,651.41

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Solution

The fourth proportional to 478,943.82, 718,369.08 and 194,651.41 is: 291,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,943.82 : 718,369.08 = 194,651.41 : x
  2. Step 2: Convert to fraction form
    478,943.82/718,369.08 = 194,651.41/x
  3. Step 3: Cross multiply
    478,943.82x = 718,369.08 × 194,651.41
  4. Step 4: Simplify right side
    478,943.82x = 139,831,554,322.40
  5. Step 5: Solve for x
    x = 139,831,554,322.40/478,943.82
  6. Step 6: Final answer
    x = 291,958.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.