Home / 845,320.20-1,268,171.64-485,657.10

Finding the Fourth Proportional to 845,320.20, 1,268,171.64 and 485,657.10

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Solution

The fourth proportional to 845,320.20, 1,268,171.64 and 485,657.10 is: 728,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,320.20 : 1,268,171.64 = 485,657.10 : x
  2. Step 2: Convert to fraction form
    845,320.20/1,268,171.64 = 485,657.10/x
  3. Step 3: Cross multiply
    845,320.20x = 1,268,171.64 × 485,657.10
  4. Step 4: Simplify right side
    845,320.20x = 615,896,560,984.64
  5. Step 5: Solve for x
    x = 615,896,560,984.64/845,320.20
  6. Step 6: Final answer
    x = 728,595.58

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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.