Home / 1,229,683.89-1,696,966.77-685,854.91

Finding the Fourth Proportional to 1,229,683.89, 1,696,966.77 and 685,854.91

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Solution

The fourth proportional to 1,229,683.89, 1,696,966.77 and 685,854.91 is: 946,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,683.89 : 1,696,966.77 = 685,854.91 : x
  2. Step 2: Convert to fraction form
    1,229,683.89/1,696,966.77 = 685,854.91/x
  3. Step 3: Cross multiply
    1,229,683.89x = 1,696,966.77 × 685,854.91
  4. Step 4: Simplify right side
    1,229,683.89x = 1,163,872,991,311.34
  5. Step 5: Solve for x
    x = 1,163,872,991,311.34/1,229,683.89
  6. Step 6: Final answer
    x = 946,481.45

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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.