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Finding the Fourth Proportional to 604,814.10, 907,221.15 and 309,902.10

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Solution

The fourth proportional to 604,814.10, 907,221.15 and 309,902.10 is: 464,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,814.10 : 907,221.15 = 309,902.10 : x
  2. Step 2: Convert to fraction form
    604,814.10/907,221.15 = 309,902.10/x
  3. Step 3: Cross multiply
    604,814.10x = 907,221.15 × 309,902.10
  4. Step 4: Simplify right side
    604,814.10x = 281,149,739,549.42
  5. Step 5: Solve for x
    x = 281,149,739,549.42/604,814.10
  6. Step 6: Final answer
    x = 464,853.15

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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.