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Finding the Fourth Proportional to 610,815.80, 843,149.58 and 369,107.48

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Solution

The fourth proportional to 610,815.80, 843,149.58 and 369,107.48 is: 509,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,815.80 : 843,149.58 = 369,107.48 : x
  2. Step 2: Convert to fraction form
    610,815.80/843,149.58 = 369,107.48/x
  3. Step 3: Cross multiply
    610,815.80x = 843,149.58 × 369,107.48
  4. Step 4: Simplify right side
    610,815.80x = 311,212,816,736.86
  5. Step 5: Solve for x
    x = 311,212,816,736.86/610,815.80
  6. Step 6: Final answer
    x = 509,503.55

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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.