Home / 1,805,821.31-2,492,032.79-990,007.48

Finding the Fourth Proportional to 1,805,821.31, 2,492,032.79 and 990,007.48

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Solution

The fourth proportional to 1,805,821.31, 2,492,032.79 and 990,007.48 is: 1,366,209.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,821.31 : 2,492,032.79 = 990,007.48 : x
  2. Step 2: Convert to fraction form
    1,805,821.31/2,492,032.79 = 990,007.48/x
  3. Step 3: Cross multiply
    1,805,821.31x = 2,492,032.79 × 990,007.48
  4. Step 4: Simplify right side
    1,805,821.31x = 2,467,131,098,750.21
  5. Step 5: Solve for x
    x = 2,467,131,098,750.21/1,805,821.31
  6. Step 6: Final answer
    x = 1,366,209.99

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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.