Home / 1,272,897.78-1,897,355.61-1,170,745.86

Finding the Fourth Proportional to 1,272,897.78, 1,897,355.61 and 1,170,745.86

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Solution

The fourth proportional to 1,272,897.78, 1,897,355.61 and 1,170,745.86 is: 1,745,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,897.78 : 1,897,355.61 = 1,170,745.86 : x
  2. Step 2: Convert to fraction form
    1,272,897.78/1,897,355.61 = 1,170,745.86/x
  3. Step 3: Cross multiply
    1,272,897.78x = 1,897,355.61 × 1,170,745.86
  4. Step 4: Simplify right side
    1,272,897.78x = 2,221,321,225,355.28
  5. Step 5: Solve for x
    x = 2,221,321,225,355.28/1,272,897.78
  6. Step 6: Final answer
    x = 1,745,090.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.