Home / 404,319.36-605,987.04-286,024.80

Finding the Fourth Proportional to 404,319.36, 605,987.04 and 286,024.80

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Solution

The fourth proportional to 404,319.36, 605,987.04 and 286,024.80 is: 428,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,319.36 : 605,987.04 = 286,024.80 : x
  2. Step 2: Convert to fraction form
    404,319.36/605,987.04 = 286,024.80/x
  3. Step 3: Cross multiply
    404,319.36x = 605,987.04 × 286,024.80
  4. Step 4: Simplify right side
    404,319.36x = 173,327,321,918.59
  5. Step 5: Solve for x
    x = 173,327,321,918.59/404,319.36
  6. Step 6: Final answer
    x = 428,689.15

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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.