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Finding the Fourth Proportional to 589,628.80, 884,443.20 and 340,019.20

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Solution

The fourth proportional to 589,628.80, 884,443.20 and 340,019.20 is: 510,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,628.80 : 884,443.20 = 340,019.20 : x
  2. Step 2: Convert to fraction form
    589,628.80/884,443.20 = 340,019.20/x
  3. Step 3: Cross multiply
    589,628.80x = 884,443.20 × 340,019.20
  4. Step 4: Simplify right side
    589,628.80x = 300,727,669,309.44
  5. Step 5: Solve for x
    x = 300,727,669,309.44/589,628.80
  6. Step 6: Final answer
    x = 510,028.80

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Similar ratio
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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.