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Finding the Fourth Proportional to 625,611.40, 937,586.64 and 326,011.53

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Solution

The fourth proportional to 625,611.40, 937,586.64 and 326,011.53 is: 488,584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,611.40 : 937,586.64 = 326,011.53 : x
  2. Step 2: Convert to fraction form
    625,611.40/937,586.64 = 326,011.53/x
  3. Step 3: Cross multiply
    625,611.40x = 937,586.64 × 326,011.53
  4. Step 4: Simplify right side
    625,611.40x = 305,664,059,752.45
  5. Step 5: Solve for x
    x = 305,664,059,752.45/625,611.40
  6. Step 6: Final answer
    x = 488,584.54

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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.