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Finding the Fourth Proportional to 659,104.40, 988,656.60 and 304,810.40

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Solution

The fourth proportional to 659,104.40, 988,656.60 and 304,810.40 is: 457,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,104.40 : 988,656.60 = 304,810.40 : x
  2. Step 2: Convert to fraction form
    659,104.40/988,656.60 = 304,810.40/x
  3. Step 3: Cross multiply
    659,104.40x = 988,656.60 × 304,810.40
  4. Step 4: Simplify right side
    659,104.40x = 301,352,813,708.64
  5. Step 5: Solve for x
    x = 301,352,813,708.64/659,104.40
  6. Step 6: Final answer
    x = 457,215.60

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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.