Home / 1,107,712.10-1,661,581.32-308,945

Finding the Fourth Proportional to 1,107,712.10, 1,661,581.32 and 308,945

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Solution

The fourth proportional to 1,107,712.10, 1,661,581.32 and 308,945 is: 463,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,712.10 : 1,661,581.32 = 308,945 : x
  2. Step 2: Convert to fraction form
    1,107,712.10/1,661,581.32 = 308,945/x
  3. Step 3: Cross multiply
    1,107,712.10x = 1,661,581.32 × 308,945
  4. Step 4: Simplify right side
    1,107,712.10x = 513,337,240,907.40
  5. Step 5: Solve for x
    x = 513,337,240,907.40/1,107,712.10
  6. Step 6: Final answer
    x = 463,421.17

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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.