Home / 778,861.30-1,167,417.15-329,505.70

Finding the Fourth Proportional to 778,861.30, 1,167,417.15 and 329,505.70

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Solution

The fourth proportional to 778,861.30, 1,167,417.15 and 329,505.70 is: 493,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,861.30 : 1,167,417.15 = 329,505.70 : x
  2. Step 2: Convert to fraction form
    778,861.30/1,167,417.15 = 329,505.70/x
  3. Step 3: Cross multiply
    778,861.30x = 1,167,417.15 × 329,505.70
  4. Step 4: Simplify right side
    778,861.30x = 384,670,605,202.76
  5. Step 5: Solve for x
    x = 384,670,605,202.76/778,861.30
  6. Step 6: Final answer
    x = 493,888.46

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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.