Home / 319,261.04-478,877.72-79,369.92

Finding the Fourth Proportional to 319,261.04, 478,877.72 and 79,369.92

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Solution

The fourth proportional to 319,261.04, 478,877.72 and 79,369.92 is: 119,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,261.04 : 478,877.72 = 79,369.92 : x
  2. Step 2: Convert to fraction form
    319,261.04/478,877.72 = 79,369.92/x
  3. Step 3: Cross multiply
    319,261.04x = 478,877.72 × 79,369.92
  4. Step 4: Simplify right side
    319,261.04x = 38,008,485,929.33
  5. Step 5: Solve for x
    x = 38,008,485,929.33/319,261.04
  6. Step 6: Final answer
    x = 119,051.44

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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.