Home / 691,879.80-1,037,474.10-317,479.80

Finding the Fourth Proportional to 691,879.80, 1,037,474.10 and 317,479.80

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Solution

The fourth proportional to 691,879.80, 1,037,474.10 and 317,479.80 is: 476,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,879.80 : 1,037,474.10 = 317,479.80 : x
  2. Step 2: Convert to fraction form
    691,879.80/1,037,474.10 = 317,479.80/x
  3. Step 3: Cross multiply
    691,879.80x = 1,037,474.10 × 317,479.80
  4. Step 4: Simplify right side
    691,879.80x = 329,377,069,773.18
  5. Step 5: Solve for x
    x = 329,377,069,773.18/691,879.80
  6. Step 6: Final answer
    x = 476,061.12

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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.