Home / 854,407.21-1,179,082.28-486,873.86

Finding the Fourth Proportional to 854,407.21, 1,179,082.28 and 486,873.86

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Solution

The fourth proportional to 854,407.21, 1,179,082.28 and 486,873.86 is: 671,886.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,407.21 : 1,179,082.28 = 486,873.86 : x
  2. Step 2: Convert to fraction form
    854,407.21/1,179,082.28 = 486,873.86/x
  3. Step 3: Cross multiply
    854,407.21x = 1,179,082.28 × 486,873.86
  4. Step 4: Simplify right side
    854,407.21x = 574,064,340,664.53
  5. Step 5: Solve for x
    x = 574,064,340,664.53/854,407.21
  6. Step 6: Final answer
    x = 671,886.12

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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.