Home / 854,405.29-1,179,079.60-486,871.91

Finding the Fourth Proportional to 854,405.29, 1,179,079.60 and 486,871.91

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Solution

The fourth proportional to 854,405.29, 1,179,079.60 and 486,871.91 is: 671,883.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,405.29 : 1,179,079.60 = 486,871.91 : x
  2. Step 2: Convert to fraction form
    854,405.29/1,179,079.60 = 486,871.91/x
  3. Step 3: Cross multiply
    854,405.29x = 1,179,079.60 × 486,871.91
  4. Step 4: Simplify right side
    854,405.29x = 574,060,736,894.04
  5. Step 5: Solve for x
    x = 574,060,736,894.04/854,405.29
  6. Step 6: Final answer
    x = 671,883.41

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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.