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Finding the Fourth Proportional to 591,987.60, 887,981.40 and 259,563.60

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Solution

The fourth proportional to 591,987.60, 887,981.40 and 259,563.60 is: 389,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,987.60 : 887,981.40 = 259,563.60 : x
  2. Step 2: Convert to fraction form
    591,987.60/887,981.40 = 259,563.60/x
  3. Step 3: Cross multiply
    591,987.60x = 887,981.40 × 259,563.60
  4. Step 4: Simplify right side
    591,987.60x = 230,487,648,917.04
  5. Step 5: Solve for x
    x = 230,487,648,917.04/591,987.60
  6. Step 6: Final answer
    x = 389,345.40

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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.