Home / 1,427,438.48-1,969,685.28-782,689.04

Finding the Fourth Proportional to 1,427,438.48, 1,969,685.28 and 782,689.04

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Solution

The fourth proportional to 1,427,438.48, 1,969,685.28 and 782,689.04 is: 1,080,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,438.48 : 1,969,685.28 = 782,689.04 : x
  2. Step 2: Convert to fraction form
    1,427,438.48/1,969,685.28 = 782,689.04/x
  3. Step 3: Cross multiply
    1,427,438.48x = 1,969,685.28 × 782,689.04
  4. Step 4: Simplify right side
    1,427,438.48x = 1,541,651,080,905.33
  5. Step 5: Solve for x
    x = 1,541,651,080,905.33/1,427,438.48
  6. Step 6: Final answer
    x = 1,080,012.28

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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.