Home / 1,258,701.80-1,737,003.30-685,740.20

Finding the Fourth Proportional to 1,258,701.80, 1,737,003.30 and 685,740.20

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Solution

The fourth proportional to 1,258,701.80, 1,737,003.30 and 685,740.20 is: 946,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,701.80 : 1,737,003.30 = 685,740.20 : x
  2. Step 2: Convert to fraction form
    1,258,701.80/1,737,003.30 = 685,740.20/x
  3. Step 3: Cross multiply
    1,258,701.80x = 1,737,003.30 × 685,740.20
  4. Step 4: Simplify right side
    1,258,701.80x = 1,191,132,990,342.66
  5. Step 5: Solve for x
    x = 1,191,132,990,342.66/1,258,701.80
  6. Step 6: Final answer
    x = 946,318.65

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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.