Home / 813,708.42-1,220,395.83-308,094.96

Finding the Fourth Proportional to 813,708.42, 1,220,395.83 and 308,094.96

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Solution

The fourth proportional to 813,708.42, 1,220,395.83 and 308,094.96 is: 462,079.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,708.42 : 1,220,395.83 = 308,094.96 : x
  2. Step 2: Convert to fraction form
    813,708.42/1,220,395.83 = 308,094.96/x
  3. Step 3: Cross multiply
    813,708.42x = 1,220,395.83 × 308,094.96
  4. Step 4: Simplify right side
    813,708.42x = 375,997,804,428.02
  5. Step 5: Solve for x
    x = 375,997,804,428.02/813,708.42
  6. Step 6: Final answer
    x = 462,079.28

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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.