Home / 739,043.64-1,019,879.82-399,512.52

Finding the Fourth Proportional to 739,043.64, 1,019,879.82 and 399,512.52

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Solution

The fourth proportional to 739,043.64, 1,019,879.82 and 399,512.52 is: 551,327.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,043.64 : 1,019,879.82 = 399,512.52 : x
  2. Step 2: Convert to fraction form
    739,043.64/1,019,879.82 = 399,512.52/x
  3. Step 3: Cross multiply
    739,043.64x = 1,019,879.82 × 399,512.52
  4. Step 4: Simplify right side
    739,043.64x = 407,454,756,985.35
  5. Step 5: Solve for x
    x = 407,454,756,985.35/739,043.64
  6. Step 6: Final answer
    x = 551,327.06

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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.