Home / 812,505.32-1,218,196.19-356,876.67

Finding the Fourth Proportional to 812,505.32, 1,218,196.19 and 356,876.67

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Solution

The fourth proportional to 812,505.32, 1,218,196.19 and 356,876.67 is: 535,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,505.32 : 1,218,196.19 = 356,876.67 : x
  2. Step 2: Convert to fraction form
    812,505.32/1,218,196.19 = 356,876.67/x
  3. Step 3: Cross multiply
    812,505.32x = 1,218,196.19 × 356,876.67
  4. Step 4: Simplify right side
    812,505.32x = 434,745,797,909.50
  5. Step 5: Solve for x
    x = 434,745,797,909.50/812,505.32
  6. Step 6: Final answer
    x = 535,068.25

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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.