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Finding the Fourth Proportional to 604,611.60, 906,917.40 and 511,299.60

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Solution

The fourth proportional to 604,611.60, 906,917.40 and 511,299.60 is: 766,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,611.60 : 906,917.40 = 511,299.60 : x
  2. Step 2: Convert to fraction form
    604,611.60/906,917.40 = 511,299.60/x
  3. Step 3: Cross multiply
    604,611.60x = 906,917.40 × 511,299.60
  4. Step 4: Simplify right side
    604,611.60x = 463,706,503,853.04
  5. Step 5: Solve for x
    x = 463,706,503,853.04/604,611.60
  6. Step 6: Final answer
    x = 766,949.40

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Double scale
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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.