Home / 445,931.80-668,897.70-268,984.60

Finding the Fourth Proportional to 445,931.80, 668,897.70 and 268,984.60

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Solution

The fourth proportional to 445,931.80, 668,897.70 and 268,984.60 is: 403,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,931.80 : 668,897.70 = 268,984.60 : x
  2. Step 2: Convert to fraction form
    445,931.80/668,897.70 = 268,984.60/x
  3. Step 3: Cross multiply
    445,931.80x = 668,897.70 × 268,984.60
  4. Step 4: Simplify right side
    445,931.80x = 179,923,180,275.42
  5. Step 5: Solve for x
    x = 179,923,180,275.42/445,931.80
  6. Step 6: Final answer
    x = 403,476.90

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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.