Home / 447,915.02-670,293.84-279,514.60

Finding the Fourth Proportional to 447,915.02, 670,293.84 and 279,514.60

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Solution

The fourth proportional to 447,915.02, 670,293.84 and 279,514.60 is: 418,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,915.02 : 670,293.84 = 279,514.60 : x
  2. Step 2: Convert to fraction form
    447,915.02/670,293.84 = 279,514.60/x
  3. Step 3: Cross multiply
    447,915.02x = 670,293.84 × 279,514.60
  4. Step 4: Simplify right side
    447,915.02x = 187,356,913,172.49
  5. Step 5: Solve for x
    x = 187,356,913,172.49/447,915.02
  6. Step 6: Final answer
    x = 418,286.74

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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.