Home / 739,452.96-1,020,445.06-399,921.22

Finding the Fourth Proportional to 739,452.96, 1,020,445.06 and 399,921.22

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Solution

The fourth proportional to 739,452.96, 1,020,445.06 and 399,921.22 is: 551,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,452.96 : 1,020,445.06 = 399,921.22 : x
  2. Step 2: Convert to fraction form
    739,452.96/1,020,445.06 = 399,921.22/x
  3. Step 3: Cross multiply
    739,452.96x = 1,020,445.06 × 399,921.22
  4. Step 4: Simplify right side
    739,452.96x = 408,097,633,338.17
  5. Step 5: Solve for x
    x = 408,097,633,338.17/739,452.96
  6. Step 6: Final answer
    x = 551,891.27

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Double scale
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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.