Home / 385,799.16-578,487.33-119,485.74

Finding the Fourth Proportional to 385,799.16, 578,487.33 and 119,485.74

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Solution

The fourth proportional to 385,799.16, 578,487.33 and 119,485.74 is: 179,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,799.16 : 578,487.33 = 119,485.74 : x
  2. Step 2: Convert to fraction form
    385,799.16/578,487.33 = 119,485.74/x
  3. Step 3: Cross multiply
    385,799.16x = 578,487.33 × 119,485.74
  4. Step 4: Simplify right side
    385,799.16x = 69,120,986,108.25
  5. Step 5: Solve for x
    x = 69,120,986,108.25/385,799.16
  6. Step 6: Final answer
    x = 179,163.13

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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.