Home / 750,690.88-1,036,027.92-428,449.80

Finding the Fourth Proportional to 750,690.88, 1,036,027.92 and 428,449.80

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Solution

The fourth proportional to 750,690.88, 1,036,027.92 and 428,449.80 is: 591,303.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,690.88 : 1,036,027.92 = 428,449.80 : x
  2. Step 2: Convert to fraction form
    750,690.88/1,036,027.92 = 428,449.80/x
  3. Step 3: Cross multiply
    750,690.88x = 1,036,027.92 × 428,449.80
  4. Step 4: Simplify right side
    750,690.88x = 443,885,955,118.42
  5. Step 5: Solve for x
    x = 443,885,955,118.42/750,690.88
  6. Step 6: Final answer
    x = 591,303.25

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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.