Home / 1,189,893.71-1,785,549.71-431,794.32

Finding the Fourth Proportional to 1,189,893.71, 1,785,549.71 and 431,794.32

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Solution

The fourth proportional to 1,189,893.71, 1,785,549.71 and 431,794.32 is: 647,948.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,893.71 : 1,785,549.71 = 431,794.32 : x
  2. Step 2: Convert to fraction form
    1,189,893.71/1,785,549.71 = 431,794.32/x
  3. Step 3: Cross multiply
    1,189,893.71x = 1,785,549.71 × 431,794.32
  4. Step 4: Simplify right side
    1,189,893.71x = 770,990,223,935.13
  5. Step 5: Solve for x
    x = 770,990,223,935.13/1,189,893.71
  6. Step 6: Final answer
    x = 647,948.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.