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Finding the Fourth Proportional to 663,312.08, 994,870.92 and 326,262.26

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Solution

The fourth proportional to 663,312.08, 994,870.92 and 326,262.26 is: 489,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,312.08 : 994,870.92 = 326,262.26 : x
  2. Step 2: Convert to fraction form
    663,312.08/994,870.92 = 326,262.26/x
  3. Step 3: Cross multiply
    663,312.08x = 994,870.92 × 326,262.26
  4. Step 4: Simplify right side
    663,312.08x = 324,588,834,767.48
  5. Step 5: Solve for x
    x = 324,588,834,767.48/663,312.08
  6. Step 6: Final answer
    x = 489,345.58

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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.