Home / 787,531.80-1,181,880.90-314,556.60

Finding the Fourth Proportional to 787,531.80, 1,181,880.90 and 314,556.60

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Solution

The fourth proportional to 787,531.80, 1,181,880.90 and 314,556.60 is: 472,067.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,531.80 : 1,181,880.90 = 314,556.60 : x
  2. Step 2: Convert to fraction form
    787,531.80/1,181,880.90 = 314,556.60/x
  3. Step 3: Cross multiply
    787,531.80x = 1,181,880.90 × 314,556.60
  4. Step 4: Simplify right side
    787,531.80x = 371,768,437,508.94
  5. Step 5: Solve for x
    x = 371,768,437,508.94/787,531.80
  6. Step 6: Final answer
    x = 472,067.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.