Home / 2,127,731.25-3,191,360.31-761,449.81

Finding the Fourth Proportional to 2,127,731.25, 3,191,360.31 and 761,449.81

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Solution

The fourth proportional to 2,127,731.25, 3,191,360.31 and 761,449.81 is: 1,142,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,731.25 : 3,191,360.31 = 761,449.81 : x
  2. Step 2: Convert to fraction form
    2,127,731.25/3,191,360.31 = 761,449.81/x
  3. Step 3: Cross multiply
    2,127,731.25x = 3,191,360.31 × 761,449.81
  4. Step 4: Simplify right side
    2,127,731.25x = 2,430,060,711,164.17
  5. Step 5: Solve for x
    x = 2,430,060,711,164.17/2,127,731.25
  6. Step 6: Final answer
    x = 1,142,090.06

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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.