Home / 1,427,636.83-1,970,579.91-918,339.25

Finding the Fourth Proportional to 1,427,636.83, 1,970,579.91 and 918,339.25

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Solution

The fourth proportional to 1,427,636.83, 1,970,579.91 and 918,339.25 is: 1,267,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,636.83 : 1,970,579.91 = 918,339.25 : x
  2. Step 2: Convert to fraction form
    1,427,636.83/1,970,579.91 = 918,339.25/x
  3. Step 3: Cross multiply
    1,427,636.83x = 1,970,579.91 × 918,339.25
  4. Step 4: Simplify right side
    1,427,636.83x = 1,809,660,876,614.47
  5. Step 5: Solve for x
    x = 1,809,660,876,614.47/1,427,636.83
  6. Step 6: Final answer
    x = 1,267,591.90

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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.