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Finding the Fourth Proportional to 664,522.80, 996,913.80 and 265,095.60

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Solution

The fourth proportional to 664,522.80, 996,913.80 and 265,095.60 is: 397,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,522.80 : 996,913.80 = 265,095.60 : x
  2. Step 2: Convert to fraction form
    664,522.80/996,913.80 = 265,095.60/x
  3. Step 3: Cross multiply
    664,522.80x = 996,913.80 × 265,095.60
  4. Step 4: Simplify right side
    664,522.80x = 264,277,461,959.28
  5. Step 5: Solve for x
    x = 264,277,461,959.28/664,522.80
  6. Step 6: Final answer
    x = 397,695.10

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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.