Home / 921,805.80-1,272,679.14-752,442.60

Finding the Fourth Proportional to 921,805.80, 1,272,679.14 and 752,442.60

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Solution

The fourth proportional to 921,805.80, 1,272,679.14 and 752,442.60 is: 1,038,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,805.80 : 1,272,679.14 = 752,442.60 : x
  2. Step 2: Convert to fraction form
    921,805.80/1,272,679.14 = 752,442.60/x
  3. Step 3: Cross multiply
    921,805.80x = 1,272,679.14 × 752,442.60
  4. Step 4: Simplify right side
    921,805.80x = 957,618,001,067.36
  5. Step 5: Solve for x
    x = 957,618,001,067.36/921,805.80
  6. Step 6: Final answer
    x = 1,038,850.05

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1.5x scale

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.