Home / 1,427,669.79-1,970,239.46-783,117.15

Finding the Fourth Proportional to 1,427,669.79, 1,970,239.46 and 783,117.15

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Solution

The fourth proportional to 1,427,669.79, 1,970,239.46 and 783,117.15 is: 1,080,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,669.79 : 1,970,239.46 = 783,117.15 : x
  2. Step 2: Convert to fraction form
    1,427,669.79/1,970,239.46 = 783,117.15/x
  3. Step 3: Cross multiply
    1,427,669.79x = 1,970,239.46 × 783,117.15
  4. Step 4: Simplify right side
    1,427,669.79x = 1,542,928,306,817.15
  5. Step 5: Solve for x
    x = 1,542,928,306,817.15/1,427,669.79
  6. Step 6: Final answer
    x = 1,080,731.92

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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.