Home / 739,975.14-1,021,168.88-400,443.38

Finding the Fourth Proportional to 739,975.14, 1,021,168.88 and 400,443.38

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Solution

The fourth proportional to 739,975.14, 1,021,168.88 and 400,443.38 is: 552,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,975.14 : 1,021,168.88 = 400,443.38 : x
  2. Step 2: Convert to fraction form
    739,975.14/1,021,168.88 = 400,443.38/x
  3. Step 3: Cross multiply
    739,975.14x = 1,021,168.88 × 400,443.38
  4. Step 4: Simplify right side
    739,975.14x = 408,920,317,858.01
  5. Step 5: Solve for x
    x = 408,920,317,858.01/739,975.14
  6. Step 6: Final answer
    x = 552,613.59

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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.