Home / 780,038.20-1,170,057.30-691,464.70

Finding the Fourth Proportional to 780,038.20, 1,170,057.30 and 691,464.70

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Solution

The fourth proportional to 780,038.20, 1,170,057.30 and 691,464.70 is: 1,037,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,038.20 : 1,170,057.30 = 691,464.70 : x
  2. Step 2: Convert to fraction form
    780,038.20/1,170,057.30 = 691,464.70/x
  3. Step 3: Cross multiply
    780,038.20x = 1,170,057.30 × 691,464.70
  4. Step 4: Simplify right side
    780,038.20x = 809,053,319,927.31
  5. Step 5: Solve for x
    x = 809,053,319,927.31/780,038.20
  6. Step 6: Final answer
    x = 1,037,197.05

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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.