Home / 1,311,997.74-1,810,565.93-731,258.31

Finding the Fourth Proportional to 1,311,997.74, 1,810,565.93 and 731,258.31

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Solution

The fourth proportional to 1,311,997.74, 1,810,565.93 and 731,258.31 is: 1,009,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,997.74 : 1,810,565.93 = 731,258.31 : x
  2. Step 2: Convert to fraction form
    1,311,997.74/1,810,565.93 = 731,258.31/x
  3. Step 3: Cross multiply
    1,311,997.74x = 1,810,565.93 × 731,258.31
  4. Step 4: Simplify right side
    1,311,997.74x = 1,323,991,390,733.15
  5. Step 5: Solve for x
    x = 1,323,991,390,733.15/1,311,997.74
  6. Step 6: Final answer
    x = 1,009,141.52

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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.