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Finding the Fourth Proportional to 906,338, 1,250,746.44 and 503,930

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Solution

The fourth proportional to 906,338, 1,250,746.44 and 503,930 is: 695,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,338 : 1,250,746.44 = 503,930 : x
  2. Step 2: Convert to fraction form
    906,338/1,250,746.44 = 503,930/x
  3. Step 3: Cross multiply
    906,338x = 1,250,746.44 × 503,930
  4. Step 4: Simplify right side
    906,338x = 630,288,653,509.20
  5. Step 5: Solve for x
    x = 630,288,653,509.20/906,338
  6. Step 6: Final answer
    x = 695,423.40

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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.