Home / 319,646.04-478,721.94-252,636.36

Finding the Fourth Proportional to 319,646.04, 478,721.94 and 252,636.36

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Solution

The fourth proportional to 319,646.04, 478,721.94 and 252,636.36 is: 378,364.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,646.04 : 478,721.94 = 252,636.36 : x
  2. Step 2: Convert to fraction form
    319,646.04/478,721.94 = 252,636.36/x
  3. Step 3: Cross multiply
    319,646.04x = 478,721.94 × 252,636.36
  4. Step 4: Simplify right side
    319,646.04x = 120,942,568,373.74
  5. Step 5: Solve for x
    x = 120,942,568,373.74/319,646.04
  6. Step 6: Final answer
    x = 378,364.04

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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.