Home / 386,509.02-579,757.77-133,973.34

Finding the Fourth Proportional to 386,509.02, 579,757.77 and 133,973.34

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Solution

The fourth proportional to 386,509.02, 579,757.77 and 133,973.34 is: 200,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,509.02 : 579,757.77 = 133,973.34 : x
  2. Step 2: Convert to fraction form
    386,509.02/579,757.77 = 133,973.34/x
  3. Step 3: Cross multiply
    386,509.02x = 579,757.77 × 133,973.34
  4. Step 4: Simplify right side
    386,509.02x = 77,672,084,837.85
  5. Step 5: Solve for x
    x = 77,672,084,837.85/386,509.02
  6. Step 6: Final answer
    x = 200,958.01

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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.