Home / 1,079,779.28-1,490,095.38-627,099.44

Finding the Fourth Proportional to 1,079,779.28, 1,490,095.38 and 627,099.44

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Solution

The fourth proportional to 1,079,779.28, 1,490,095.38 and 627,099.44 is: 865,397.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,779.28 : 1,490,095.38 = 627,099.44 : x
  2. Step 2: Convert to fraction form
    1,079,779.28/1,490,095.38 = 627,099.44/x
  3. Step 3: Cross multiply
    1,079,779.28x = 1,490,095.38 × 627,099.44
  4. Step 4: Simplify right side
    1,079,779.28x = 934,437,978,344.59
  5. Step 5: Solve for x
    x = 934,437,978,344.59/1,079,779.28
  6. Step 6: Final answer
    x = 865,397.21

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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.