Home / 1,346,239.31-2,019,343.40-386,718.44

Finding the Fourth Proportional to 1,346,239.31, 2,019,343.40 and 386,718.44

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Solution

The fourth proportional to 1,346,239.31, 2,019,343.40 and 386,718.44 is: 580,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,239.31 : 2,019,343.40 = 386,718.44 : x
  2. Step 2: Convert to fraction form
    1,346,239.31/2,019,343.40 = 386,718.44/x
  3. Step 3: Cross multiply
    1,346,239.31x = 2,019,343.40 × 386,718.44
  4. Step 4: Simplify right side
    1,346,239.31x = 780,917,318,892.18
  5. Step 5: Solve for x
    x = 780,917,318,892.18/1,346,239.31
  6. Step 6: Final answer
    x = 580,073.18

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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.