Home / 2,640,316.25-3,961,327.31-1,221,303.17

Finding the Fourth Proportional to 2,640,316.25, 3,961,327.31 and 1,221,303.17

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Solution

The fourth proportional to 2,640,316.25, 3,961,327.31 and 1,221,303.17 is: 1,832,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,316.25 : 3,961,327.31 = 1,221,303.17 : x
  2. Step 2: Convert to fraction form
    2,640,316.25/3,961,327.31 = 1,221,303.17/x
  3. Step 3: Cross multiply
    2,640,316.25x = 3,961,327.31 × 1,221,303.17
  4. Step 4: Simplify right side
    2,640,316.25x = 4,837,981,575,197.42
  5. Step 5: Solve for x
    x = 4,837,981,575,197.42/2,640,316.25
  6. Step 6: Final answer
    x = 1,832,349.28

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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.