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Finding the Fourth Proportional to 490,233.20, 735,349.80 and 349,228.40

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Solution

The fourth proportional to 490,233.20, 735,349.80 and 349,228.40 is: 523,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,233.20 : 735,349.80 = 349,228.40 : x
  2. Step 2: Convert to fraction form
    490,233.20/735,349.80 = 349,228.40/x
  3. Step 3: Cross multiply
    490,233.20x = 735,349.80 × 349,228.40
  4. Step 4: Simplify right side
    490,233.20x = 256,805,034,094.32
  5. Step 5: Solve for x
    x = 256,805,034,094.32/490,233.20
  6. Step 6: Final answer
    x = 523,842.60

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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.