Home / 813,690.09-1,220,368.14-308,077.02

Finding the Fourth Proportional to 813,690.09, 1,220,368.14 and 308,077.02

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Solution

The fourth proportional to 813,690.09, 1,220,368.14 and 308,077.02 is: 462,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,690.09 : 1,220,368.14 = 308,077.02 : x
  2. Step 2: Convert to fraction form
    813,690.09/1,220,368.14 = 308,077.02/x
  3. Step 3: Cross multiply
    813,690.09x = 1,220,368.14 × 308,077.02
  4. Step 4: Simplify right side
    813,690.09x = 375,967,379,874.14
  5. Step 5: Solve for x
    x = 375,967,379,874.14/813,690.09
  6. Step 6: Final answer
    x = 462,052.30

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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.