Home / 1,189,894.71-1,785,551.21-431,795.32

Finding the Fourth Proportional to 1,189,894.71, 1,785,551.21 and 431,795.32

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Solution

The fourth proportional to 1,189,894.71, 1,785,551.21 and 431,795.32 is: 647,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,894.71 : 1,785,551.21 = 431,795.32 : x
  2. Step 2: Convert to fraction form
    1,189,894.71/1,785,551.21 = 431,795.32/x
  3. Step 3: Cross multiply
    1,189,894.71x = 1,785,551.21 × 431,795.32
  4. Step 4: Simplify right side
    1,189,894.71x = 770,992,656,098.34
  5. Step 5: Solve for x
    x = 770,992,656,098.34/1,189,894.71
  6. Step 6: Final answer
    x = 647,950.32

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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.