Home / 813,488.34-1,122,234.21-511,848.66

Finding the Fourth Proportional to 813,488.34, 1,122,234.21 and 511,848.66

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Solution

The fourth proportional to 813,488.34, 1,122,234.21 and 511,848.66 is: 706,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,488.34 : 1,122,234.21 = 511,848.66 : x
  2. Step 2: Convert to fraction form
    813,488.34/1,122,234.21 = 511,848.66/x
  3. Step 3: Cross multiply
    813,488.34x = 1,122,234.21 × 511,848.66
  4. Step 4: Simplify right side
    813,488.34x = 574,414,076,594.66
  5. Step 5: Solve for x
    x = 574,414,076,594.66/813,488.34
  6. Step 6: Final answer
    x = 706,112.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.