Home / 739,454.25-1,020,446.87-399,922.50

Finding the Fourth Proportional to 739,454.25, 1,020,446.87 and 399,922.50

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Solution

The fourth proportional to 739,454.25, 1,020,446.87 and 399,922.50 is: 551,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,454.25 : 1,020,446.87 = 399,922.50 : x
  2. Step 2: Convert to fraction form
    739,454.25/1,020,446.87 = 399,922.50/x
  3. Step 3: Cross multiply
    739,454.25x = 1,020,446.87 × 399,922.50
  4. Step 4: Simplify right side
    739,454.25x = 408,099,663,367.58
  5. Step 5: Solve for x
    x = 408,099,663,367.58/739,454.25
  6. Step 6: Final answer
    x = 551,893.05

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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.