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Finding the Fourth Proportional to 604,764.90, 906,931.20 and 199,882.20

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Solution

The fourth proportional to 604,764.90, 906,931.20 and 199,882.20 is: 299,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,764.90 : 906,931.20 = 199,882.20 : x
  2. Step 2: Convert to fraction form
    604,764.90/906,931.20 = 199,882.20/x
  3. Step 3: Cross multiply
    604,764.90x = 906,931.20 × 199,882.20
  4. Step 4: Simplify right side
    604,764.90x = 181,279,403,504.64
  5. Step 5: Solve for x
    x = 181,279,403,504.64/604,764.90
  6. Step 6: Final answer
    x = 299,751.86

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Double scale
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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.