Home / 854,403.29-1,179,076.84-486,869.91

Finding the Fourth Proportional to 854,403.29, 1,179,076.84 and 486,869.91

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Solution

The fourth proportional to 854,403.29, 1,179,076.84 and 486,869.91 is: 671,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,403.29 : 1,179,076.84 = 486,869.91 : x
  2. Step 2: Convert to fraction form
    854,403.29/1,179,076.84 = 486,869.91/x
  3. Step 3: Cross multiply
    854,403.29x = 1,179,076.84 × 486,869.91
  4. Step 4: Simplify right side
    854,403.29x = 574,057,027,861.33
  5. Step 5: Solve for x
    x = 574,057,027,861.33/854,403.29
  6. Step 6: Final answer
    x = 671,880.64

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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.