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Finding the Fourth Proportional to 578,119.38, 797,805.84 and 320,014.20

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Solution

The fourth proportional to 578,119.38, 797,805.84 and 320,014.20 is: 441,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,119.38 : 797,805.84 = 320,014.20 : x
  2. Step 2: Convert to fraction form
    578,119.38/797,805.84 = 320,014.20/x
  3. Step 3: Cross multiply
    578,119.38x = 797,805.84 × 320,014.20
  4. Step 4: Simplify right side
    578,119.38x = 255,309,197,642.93
  5. Step 5: Solve for x
    x = 255,309,197,642.93/578,119.38
  6. Step 6: Final answer
    x = 441,620.20

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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.