Home / 413,723.40-620,439.30-147,492.60

Finding the Fourth Proportional to 413,723.40, 620,439.30 and 147,492.60

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Solution

The fourth proportional to 413,723.40, 620,439.30 and 147,492.60 is: 221,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,723.40 : 620,439.30 = 147,492.60 : x
  2. Step 2: Convert to fraction form
    413,723.40/620,439.30 = 147,492.60/x
  3. Step 3: Cross multiply
    413,723.40x = 620,439.30 × 147,492.60
  4. Step 4: Simplify right side
    413,723.40x = 91,510,205,499.18
  5. Step 5: Solve for x
    x = 91,510,205,499.18/413,723.40
  6. Step 6: Final answer
    x = 221,186.92

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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.