Home / 750,780.08-1,036,105.08-428,542.64

Finding the Fourth Proportional to 750,780.08, 1,036,105.08 and 428,542.64

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Solution

The fourth proportional to 750,780.08, 1,036,105.08 and 428,542.64 is: 591,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,780.08 : 1,036,105.08 = 428,542.64 : x
  2. Step 2: Convert to fraction form
    750,780.08/1,036,105.08 = 428,542.64/x
  3. Step 3: Cross multiply
    750,780.08x = 1,036,105.08 × 428,542.64
  4. Step 4: Simplify right side
    750,780.08x = 444,015,206,300.61
  5. Step 5: Solve for x
    x = 444,015,206,300.61/750,780.08
  6. Step 6: Final answer
    x = 591,405.15

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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.