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Finding the Fourth Proportional to 835,800.48, 1,253,880.72 and 259,411.77

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Solution

The fourth proportional to 835,800.48, 1,253,880.72 and 259,411.77 is: 389,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,800.48 : 1,253,880.72 = 259,411.77 : x
  2. Step 2: Convert to fraction form
    835,800.48/1,253,880.72 = 259,411.77/x
  3. Step 3: Cross multiply
    835,800.48x = 1,253,880.72 × 259,411.77
  4. Step 4: Simplify right side
    835,800.48x = 325,271,416,944.07
  5. Step 5: Solve for x
    x = 325,271,416,944.07/835,800.48
  6. Step 6: Final answer
    x = 389,173.52

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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.