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Finding the Fourth Proportional to 630,514.35, 945,701.60 and 225,690.39

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Solution

The fourth proportional to 630,514.35, 945,701.60 and 225,690.39 is: 338,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,514.35 : 945,701.60 = 225,690.39 : x
  2. Step 2: Convert to fraction form
    630,514.35/945,701.60 = 225,690.39/x
  3. Step 3: Cross multiply
    630,514.35x = 945,701.60 × 225,690.39
  4. Step 4: Simplify right side
    630,514.35x = 213,435,761,799.17
  5. Step 5: Solve for x
    x = 213,435,761,799.17/630,514.35
  6. Step 6: Final answer
    x = 338,510.55

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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.