Home / 728,931.80-1,093,397.70-447,536.60

Finding the Fourth Proportional to 728,931.80, 1,093,397.70 and 447,536.60

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Solution

The fourth proportional to 728,931.80, 1,093,397.70 and 447,536.60 is: 671,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,931.80 : 1,093,397.70 = 447,536.60 : x
  2. Step 2: Convert to fraction form
    728,931.80/1,093,397.70 = 447,536.60/x
  3. Step 3: Cross multiply
    728,931.80x = 1,093,397.70 × 447,536.60
  4. Step 4: Simplify right side
    728,931.80x = 489,335,489,105.82
  5. Step 5: Solve for x
    x = 489,335,489,105.82/728,931.80
  6. Step 6: Final answer
    x = 671,304.90

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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.