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Finding the Fourth Proportional to 542,449.04, 748,559.40 and 303,969.68

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Solution

The fourth proportional to 542,449.04, 748,559.40 and 303,969.68 is: 419,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,449.04 : 748,559.40 = 303,969.68 : x
  2. Step 2: Convert to fraction form
    542,449.04/748,559.40 = 303,969.68/x
  3. Step 3: Cross multiply
    542,449.04x = 748,559.40 × 303,969.68
  4. Step 4: Simplify right side
    542,449.04x = 227,539,361,278.99
  5. Step 5: Solve for x
    x = 227,539,361,278.99/542,449.04
  6. Step 6: Final answer
    x = 419,466.80

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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.