Home / 845,221.42-1,268,958.30-490,490.02

Finding the Fourth Proportional to 845,221.42, 1,268,958.30 and 490,490.02

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Solution

The fourth proportional to 845,221.42, 1,268,958.30 and 490,490.02 is: 736,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,221.42 : 1,268,958.30 = 490,490.02 : x
  2. Step 2: Convert to fraction form
    845,221.42/1,268,958.30 = 490,490.02/x
  3. Step 3: Cross multiply
    845,221.42x = 1,268,958.30 × 490,490.02
  4. Step 4: Simplify right side
    845,221.42x = 622,411,381,946.17
  5. Step 5: Solve for x
    x = 622,411,381,946.17/845,221.42
  6. Step 6: Final answer
    x = 736,388.56

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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.