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Finding the Fourth Proportional to 584,145.60, 806,121 and 315,873.60

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Solution

The fourth proportional to 584,145.60, 806,121 and 315,873.60 is: 435,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,145.60 : 806,121 = 315,873.60 : x
  2. Step 2: Convert to fraction form
    584,145.60/806,121 = 315,873.60/x
  3. Step 3: Cross multiply
    584,145.60x = 806,121 × 315,873.60
  4. Step 4: Simplify right side
    584,145.60x = 254,632,342,305.60
  5. Step 5: Solve for x
    x = 254,632,342,305.60/584,145.60
  6. Step 6: Final answer
    x = 435,905.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.