Home / 1,145,447.78-1,580,721.63-636,150.16

Finding the Fourth Proportional to 1,145,447.78, 1,580,721.63 and 636,150.16

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Solution

The fourth proportional to 1,145,447.78, 1,580,721.63 and 636,150.16 is: 877,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,447.78 : 1,580,721.63 = 636,150.16 : x
  2. Step 2: Convert to fraction form
    1,145,447.78/1,580,721.63 = 636,150.16/x
  3. Step 3: Cross multiply
    1,145,447.78x = 1,580,721.63 × 636,150.16
  4. Step 4: Simplify right side
    1,145,447.78x = 1,005,576,317,839.96
  5. Step 5: Solve for x
    x = 1,005,576,317,839.96/1,145,447.78
  6. Step 6: Final answer
    x = 877,889.27

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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.