Home / 723,255.58-998,116.26-400,995.64

Finding the Fourth Proportional to 723,255.58, 998,116.26 and 400,995.64

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Solution

The fourth proportional to 723,255.58, 998,116.26 and 400,995.64 is: 553,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,255.58 : 998,116.26 = 400,995.64 : x
  2. Step 2: Convert to fraction form
    723,255.58/998,116.26 = 400,995.64/x
  3. Step 3: Cross multiply
    723,255.58x = 998,116.26 × 400,995.64
  4. Step 4: Simplify right side
    723,255.58x = 400,240,268,473.11
  5. Step 5: Solve for x
    x = 400,240,268,473.11/723,255.58
  6. Step 6: Final answer
    x = 553,387.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.