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Finding the Fourth Proportional to 444,276.50, 612,463.88 and 316,730.66

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Solution

The fourth proportional to 444,276.50, 612,463.88 and 316,730.66 is: 436,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,276.50 : 612,463.88 = 316,730.66 : x
  2. Step 2: Convert to fraction form
    444,276.50/612,463.88 = 316,730.66/x
  3. Step 3: Cross multiply
    444,276.50x = 612,463.88 × 316,730.66
  4. Step 4: Simplify right side
    444,276.50x = 193,986,086,668.07
  5. Step 5: Solve for x
    x = 193,986,086,668.07/444,276.50
  6. Step 6: Final answer
    x = 436,633.69

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1.5x scale

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.