Home / 775,980.11-1,163,630.78-391,492.35

Finding the Fourth Proportional to 775,980.11, 1,163,630.78 and 391,492.35

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Solution

The fourth proportional to 775,980.11, 1,163,630.78 and 391,492.35 is: 587,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,980.11 : 1,163,630.78 = 391,492.35 : x
  2. Step 2: Convert to fraction form
    775,980.11/1,163,630.78 = 391,492.35/x
  3. Step 3: Cross multiply
    775,980.11x = 1,163,630.78 × 391,492.35
  4. Step 4: Simplify right side
    775,980.11x = 455,552,548,594.53
  5. Step 5: Solve for x
    x = 455,552,548,594.53/775,980.11
  6. Step 6: Final answer
    x = 587,067.30

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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.