Home / 727,480.25-1,003,923.05-421,733.90

Finding the Fourth Proportional to 727,480.25, 1,003,923.05 and 421,733.90

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Solution

The fourth proportional to 727,480.25, 1,003,923.05 and 421,733.90 is: 581,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,480.25 : 1,003,923.05 = 421,733.90 : x
  2. Step 2: Convert to fraction form
    727,480.25/1,003,923.05 = 421,733.90/x
  3. Step 3: Cross multiply
    727,480.25x = 1,003,923.05 × 421,733.90
  4. Step 4: Simplify right side
    727,480.25x = 423,388,377,629.61
  5. Step 5: Solve for x
    x = 423,388,377,629.61/727,480.25
  6. Step 6: Final answer
    x = 581,992.95

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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.