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Finding the Fourth Proportional to 647,290.44, 892,843.97 and 429,494.40

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Solution

The fourth proportional to 647,290.44, 892,843.97 and 429,494.40 is: 592,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,290.44 : 892,843.97 = 429,494.40 : x
  2. Step 2: Convert to fraction form
    647,290.44/892,843.97 = 429,494.40/x
  3. Step 3: Cross multiply
    647,290.44x = 892,843.97 × 429,494.40
  4. Step 4: Simplify right side
    647,290.44x = 383,471,483,041.30
  5. Step 5: Solve for x
    x = 383,471,483,041.30/647,290.44
  6. Step 6: Final answer
    x = 592,425.69

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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.