Home / 1,427,635.83-1,970,578.53-918,338.25

Finding the Fourth Proportional to 1,427,635.83, 1,970,578.53 and 918,338.25

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Solution

The fourth proportional to 1,427,635.83, 1,970,578.53 and 918,338.25 is: 1,267,590.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,635.83 : 1,970,578.53 = 918,338.25 : x
  2. Step 2: Convert to fraction form
    1,427,635.83/1,970,578.53 = 918,338.25/x
  3. Step 3: Cross multiply
    1,427,635.83x = 1,970,578.53 × 918,338.25
  4. Step 4: Simplify right side
    1,427,635.83x = 1,809,657,628,874.88
  5. Step 5: Solve for x
    x = 1,809,657,628,874.88/1,427,635.83
  6. Step 6: Final answer
    x = 1,267,590.51

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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.