Home / 386,583.98-579,737.03-133,795.89

Finding the Fourth Proportional to 386,583.98, 579,737.03 and 133,795.89

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Solution

The fourth proportional to 386,583.98, 579,737.03 and 133,795.89 is: 200,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,583.98 : 579,737.03 = 133,795.89 : x
  2. Step 2: Convert to fraction form
    386,583.98/579,737.03 = 133,795.89/x
  3. Step 3: Cross multiply
    386,583.98x = 579,737.03 × 133,795.89
  4. Step 4: Simplify right side
    386,583.98x = 77,566,431,225.83
  5. Step 5: Solve for x
    x = 77,566,431,225.83/386,583.98
  6. Step 6: Final answer
    x = 200,645.75

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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.