Home / 777,779.20-1,165,747.20-328,499.20

Finding the Fourth Proportional to 777,779.20, 1,165,747.20 and 328,499.20

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Solution

The fourth proportional to 777,779.20, 1,165,747.20 and 328,499.20 is: 492,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,779.20 : 1,165,747.20 = 328,499.20 : x
  2. Step 2: Convert to fraction form
    777,779.20/1,165,747.20 = 328,499.20/x
  3. Step 3: Cross multiply
    777,779.20x = 1,165,747.20 × 328,499.20
  4. Step 4: Simplify right side
    777,779.20x = 382,947,022,602.24
  5. Step 5: Solve for x
    x = 382,947,022,602.24/777,779.20
  6. Step 6: Final answer
    x = 492,359.56

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1.5x scale

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.