Home / 1,290,987.40-1,936,221.90-617,067.40

Finding the Fourth Proportional to 1,290,987.40, 1,936,221.90 and 617,067.40

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Solution

The fourth proportional to 1,290,987.40, 1,936,221.90 and 617,067.40 is: 925,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,987.40 : 1,936,221.90 = 617,067.40 : x
  2. Step 2: Convert to fraction form
    1,290,987.40/1,936,221.90 = 617,067.40/x
  3. Step 3: Cross multiply
    1,290,987.40x = 1,936,221.90 × 617,067.40
  4. Step 4: Simplify right side
    1,290,987.40x = 1,194,779,413,656.06
  5. Step 5: Solve for x
    x = 1,194,779,413,656.06/1,290,987.40
  6. Step 6: Final answer
    x = 925,477.21

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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.