Home / 385,724.40-578,669.22-196,211.13

Finding the Fourth Proportional to 385,724.40, 578,669.22 and 196,211.13

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Solution

The fourth proportional to 385,724.40, 578,669.22 and 196,211.13 is: 294,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,724.40 : 578,669.22 = 196,211.13 : x
  2. Step 2: Convert to fraction form
    385,724.40/578,669.22 = 196,211.13/x
  3. Step 3: Cross multiply
    385,724.40x = 578,669.22 × 196,211.13
  4. Step 4: Simplify right side
    385,724.40x = 113,541,341,552.42
  5. Step 5: Solve for x
    x = 113,541,341,552.42/385,724.40
  6. Step 6: Final answer
    x = 294,358.72

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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.