Home / 511,268.12-705,089.58-320,298.20

Finding the Fourth Proportional to 511,268.12, 705,089.58 and 320,298.20

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Solution

The fourth proportional to 511,268.12, 705,089.58 and 320,298.20 is: 441,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,268.12 : 705,089.58 = 320,298.20 : x
  2. Step 2: Convert to fraction form
    511,268.12/705,089.58 = 320,298.20/x
  3. Step 3: Cross multiply
    511,268.12x = 705,089.58 × 320,298.20
  4. Step 4: Simplify right side
    511,268.12x = 225,838,923,312.76
  5. Step 5: Solve for x
    x = 225,838,923,312.76/511,268.12
  6. Step 6: Final answer
    x = 441,723.07

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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.