Home / 1,229,718.08-1,697,010.75-685,842.20

Finding the Fourth Proportional to 1,229,718.08, 1,697,010.75 and 685,842.20

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Solution

The fourth proportional to 1,229,718.08, 1,697,010.75 and 685,842.20 is: 946,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,718.08 : 1,697,010.75 = 685,842.20 : x
  2. Step 2: Convert to fraction form
    1,229,718.08/1,697,010.75 = 685,842.20/x
  3. Step 3: Cross multiply
    1,229,718.08x = 1,697,010.75 × 685,842.20
  4. Step 4: Simplify right side
    1,229,718.08x = 1,163,881,586,203.65
  5. Step 5: Solve for x
    x = 1,163,881,586,203.65/1,229,718.08
  6. Step 6: Final answer
    x = 946,462.12

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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.