Home / 807,941.76-1,115,009.60-445,363.84

Finding the Fourth Proportional to 807,941.76, 1,115,009.60 and 445,363.84

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Solution

The fourth proportional to 807,941.76, 1,115,009.60 and 445,363.84 is: 614,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,941.76 : 1,115,009.60 = 445,363.84 : x
  2. Step 2: Convert to fraction form
    807,941.76/1,115,009.60 = 445,363.84/x
  3. Step 3: Cross multiply
    807,941.76x = 1,115,009.60 × 445,363.84
  4. Step 4: Simplify right side
    807,941.76x = 496,584,957,092.86
  5. Step 5: Solve for x
    x = 496,584,957,092.86/807,941.76
  6. Step 6: Final answer
    x = 614,629.64

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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.