Home / 775,975.30-1,163,623.65-391,487.62

Finding the Fourth Proportional to 775,975.30, 1,163,623.65 and 391,487.62

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Solution

The fourth proportional to 775,975.30, 1,163,623.65 and 391,487.62 is: 587,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,975.30 : 1,163,623.65 = 391,487.62 : x
  2. Step 2: Convert to fraction form
    775,975.30/1,163,623.65 = 391,487.62/x
  3. Step 3: Cross multiply
    775,975.30x = 1,163,623.65 × 391,487.62
  4. Step 4: Simplify right side
    775,975.30x = 455,544,253,314.21
  5. Step 5: Solve for x
    x = 455,544,253,314.21/775,975.30
  6. Step 6: Final answer
    x = 587,060.25

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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.