Home / 845,885.76-1,268,426.88-491,008.56

Finding the Fourth Proportional to 845,885.76, 1,268,426.88 and 491,008.56

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Solution

The fourth proportional to 845,885.76, 1,268,426.88 and 491,008.56 is: 736,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,885.76 : 1,268,426.88 = 491,008.56 : x
  2. Step 2: Convert to fraction form
    845,885.76/1,268,426.88 = 491,008.56/x
  3. Step 3: Cross multiply
    845,885.76x = 1,268,426.88 × 491,008.56
  4. Step 4: Simplify right side
    845,885.76x = 622,808,455,814.09
  5. Step 5: Solve for x
    x = 622,808,455,814.09/845,885.76
  6. Step 6: Final answer
    x = 736,279.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.