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Finding the Fourth Proportional to 654,902.60, 903,629.25 and 382,917.69

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Solution

The fourth proportional to 654,902.60, 903,629.25 and 382,917.69 is: 528,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,902.60 : 903,629.25 = 382,917.69 : x
  2. Step 2: Convert to fraction form
    654,902.60/903,629.25 = 382,917.69/x
  3. Step 3: Cross multiply
    654,902.60x = 903,629.25 × 382,917.69
  4. Step 4: Simplify right side
    654,902.60x = 346,015,625,026.43
  5. Step 5: Solve for x
    x = 346,015,625,026.43/654,902.60
  6. Step 6: Final answer
    x = 528,346.70

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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.