Home / 385,799.03-578,487.14-119,485.61

Finding the Fourth Proportional to 385,799.03, 578,487.14 and 119,485.61

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Solution

The fourth proportional to 385,799.03, 578,487.14 and 119,485.61 is: 179,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,799.03 : 578,487.14 = 119,485.61 : x
  2. Step 2: Convert to fraction form
    385,799.03/578,487.14 = 119,485.61/x
  3. Step 3: Cross multiply
    385,799.03x = 578,487.14 × 119,485.61
  4. Step 4: Simplify right side
    385,799.03x = 69,120,889,648.85
  5. Step 5: Solve for x
    x = 69,120,889,648.85/385,799.03
  6. Step 6: Final answer
    x = 179,162.94

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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.