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Finding the Fourth Proportional to 612,596.52, 918,992.99 and 213,350.76

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Solution

The fourth proportional to 612,596.52, 918,992.99 and 213,350.76 is: 320,060.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,596.52 : 918,992.99 = 213,350.76 : x
  2. Step 2: Convert to fraction form
    612,596.52/918,992.99 = 213,350.76/x
  3. Step 3: Cross multiply
    612,596.52x = 918,992.99 × 213,350.76
  4. Step 4: Simplify right side
    612,596.52x = 196,067,853,384.55
  5. Step 5: Solve for x
    x = 196,067,853,384.55/612,596.52
  6. Step 6: Final answer
    x = 320,060.34

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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.