Home / 1,107,710.10-1,661,578.32-308,943

Finding the Fourth Proportional to 1,107,710.10, 1,661,578.32 and 308,943

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Solution

The fourth proportional to 1,107,710.10, 1,661,578.32 and 308,943 is: 463,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,710.10 : 1,661,578.32 = 308,943 : x
  2. Step 2: Convert to fraction form
    1,107,710.10/1,661,578.32 = 308,943/x
  3. Step 3: Cross multiply
    1,107,710.10x = 1,661,578.32 × 308,943
  4. Step 4: Simplify right side
    1,107,710.10x = 513,332,990,915.76
  5. Step 5: Solve for x
    x = 513,332,990,915.76/1,107,710.10
  6. Step 6: Final answer
    x = 463,418.17

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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.