Home / 854,403.23-1,179,076.75-486,869.84

Finding the Fourth Proportional to 854,403.23, 1,179,076.75 and 486,869.84

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Solution

The fourth proportional to 854,403.23, 1,179,076.75 and 486,869.84 is: 671,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,403.23 : 1,179,076.75 = 486,869.84 : x
  2. Step 2: Convert to fraction form
    854,403.23/1,179,076.75 = 486,869.84/x
  3. Step 3: Cross multiply
    854,403.23x = 1,179,076.75 × 486,869.84
  4. Step 4: Simplify right side
    854,403.23x = 574,056,910,350.74
  5. Step 5: Solve for x
    x = 574,056,910,350.74/854,403.23
  6. Step 6: Final answer
    x = 671,880.55

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1.5x scale

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.