Home / 740,497.53-1,021,891.50-400,965.78

Finding the Fourth Proportional to 740,497.53, 1,021,891.50 and 400,965.78

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Solution

The fourth proportional to 740,497.53, 1,021,891.50 and 400,965.78 is: 553,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,497.53 : 1,021,891.50 = 400,965.78 : x
  2. Step 2: Convert to fraction form
    740,497.53/1,021,891.50 = 400,965.78/x
  3. Step 3: Cross multiply
    740,497.53x = 1,021,891.50 × 400,965.78
  4. Step 4: Simplify right side
    740,497.53x = 409,743,522,372.87
  5. Step 5: Solve for x
    x = 409,743,522,372.87/740,497.53
  6. Step 6: Final answer
    x = 553,335.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.