Home / 478,974.78-718,484.04-163,434.42

Finding the Fourth Proportional to 478,974.78, 718,484.04 and 163,434.42

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Solution

The fourth proportional to 478,974.78, 718,484.04 and 163,434.42 is: 245,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,974.78 : 718,484.04 = 163,434.42 : x
  2. Step 2: Convert to fraction form
    478,974.78/718,484.04 = 163,434.42/x
  3. Step 3: Cross multiply
    478,974.78x = 718,484.04 × 163,434.42
  4. Step 4: Simplify right side
    478,974.78x = 117,425,022,356.66
  5. Step 5: Solve for x
    x = 117,425,022,356.66/478,974.78
  6. Step 6: Final answer
    x = 245,159.09

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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.