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Finding the Fourth Proportional to 554,591.55, 765,336.34 and 299,942.74

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Solution

The fourth proportional to 554,591.55, 765,336.34 and 299,942.74 is: 413,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,591.55 : 765,336.34 = 299,942.74 : x
  2. Step 2: Convert to fraction form
    554,591.55/765,336.34 = 299,942.74/x
  3. Step 3: Cross multiply
    554,591.55x = 765,336.34 × 299,942.74
  4. Step 4: Simplify right side
    554,591.55x = 229,557,078,841.17
  5. Step 5: Solve for x
    x = 229,557,078,841.17/554,591.55
  6. Step 6: Final answer
    x = 413,920.98

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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.