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Finding the Fourth Proportional to 630,764.80, 946,298.40 and 210,044.48

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Solution

The fourth proportional to 630,764.80, 946,298.40 and 210,044.48 is: 315,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,764.80 : 946,298.40 = 210,044.48 : x
  2. Step 2: Convert to fraction form
    630,764.80/946,298.40 = 210,044.48/x
  3. Step 3: Cross multiply
    630,764.80x = 946,298.40 × 210,044.48
  4. Step 4: Simplify right side
    630,764.80x = 198,764,755,352.83
  5. Step 5: Solve for x
    x = 198,764,755,352.83/630,764.80
  6. Step 6: Final answer
    x = 315,117.07

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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.