Home / 813,698.08-1,220,380.12-308,085.04

Finding the Fourth Proportional to 813,698.08, 1,220,380.12 and 308,085.04

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Solution

The fourth proportional to 813,698.08, 1,220,380.12 and 308,085.04 is: 462,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,698.08 : 1,220,380.12 = 308,085.04 : x
  2. Step 2: Convert to fraction form
    813,698.08/1,220,380.12 = 308,085.04/x
  3. Step 3: Cross multiply
    813,698.08x = 1,220,380.12 × 308,085.04
  4. Step 4: Simplify right side
    813,698.08x = 375,980,858,085.41
  5. Step 5: Solve for x
    x = 375,980,858,085.41/813,698.08
  6. Step 6: Final answer
    x = 462,064.33

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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.