Home / 775,973.56-1,163,621.02-391,485.86

Finding the Fourth Proportional to 775,973.56, 1,163,621.02 and 391,485.86

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Solution

The fourth proportional to 775,973.56, 1,163,621.02 and 391,485.86 is: 587,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,973.56 : 1,163,621.02 = 391,485.86 : x
  2. Step 2: Convert to fraction form
    775,973.56/1,163,621.02 = 391,485.86/x
  3. Step 3: Cross multiply
    775,973.56x = 1,163,621.02 × 391,485.86
  4. Step 4: Simplify right side
    775,973.56x = 455,541,177,659.12
  5. Step 5: Solve for x
    x = 455,541,177,659.12/775,973.56
  6. Step 6: Final answer
    x = 587,057.60

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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.