Home / 385,723.82-578,539.66-101,436.52

Finding the Fourth Proportional to 385,723.82, 578,539.66 and 101,436.52

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Solution

The fourth proportional to 385,723.82, 578,539.66 and 101,436.52 is: 152,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,723.82 : 578,539.66 = 101,436.52 : x
  2. Step 2: Convert to fraction form
    385,723.82/578,539.66 = 101,436.52/x
  3. Step 3: Cross multiply
    385,723.82x = 578,539.66 × 101,436.52
  4. Step 4: Simplify right side
    385,723.82x = 58,685,048,092.44
  5. Step 5: Solve for x
    x = 58,685,048,092.44/385,723.82
  6. Step 6: Final answer
    x = 152,142.66

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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.