Home / 813,899.34-1,123,126.29-451,309.86

Finding the Fourth Proportional to 813,899.34, 1,123,126.29 and 451,309.86

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Solution

The fourth proportional to 813,899.34, 1,123,126.29 and 451,309.86 is: 622,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,899.34 : 1,123,126.29 = 451,309.86 : x
  2. Step 2: Convert to fraction form
    813,899.34/1,123,126.29 = 451,309.86/x
  3. Step 3: Cross multiply
    813,899.34x = 1,123,126.29 × 451,309.86
  4. Step 4: Simplify right side
    813,899.34x = 506,877,968,702.22
  5. Step 5: Solve for x
    x = 506,877,968,702.22/813,899.34
  6. Step 6: Final answer
    x = 622,777.22

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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.