Home / 814,807.80-1,222,211.70-808,902.90

Finding the Fourth Proportional to 814,807.80, 1,222,211.70 and 808,902.90

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Solution

The fourth proportional to 814,807.80, 1,222,211.70 and 808,902.90 is: 1,213,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,807.80 : 1,222,211.70 = 808,902.90 : x
  2. Step 2: Convert to fraction form
    814,807.80/1,222,211.70 = 808,902.90/x
  3. Step 3: Cross multiply
    814,807.80x = 1,222,211.70 × 808,902.90
  4. Step 4: Simplify right side
    814,807.80x = 988,650,588,543.93
  5. Step 5: Solve for x
    x = 988,650,588,543.93/814,807.80
  6. Step 6: Final answer
    x = 1,213,354.35

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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.