Home / 979,383.02-1,352,084.86-685,485.08

Finding the Fourth Proportional to 979,383.02, 1,352,084.86 and 685,485.08

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Solution

The fourth proportional to 979,383.02, 1,352,084.86 and 685,485.08 is: 946,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,383.02 : 1,352,084.86 = 685,485.08 : x
  2. Step 2: Convert to fraction form
    979,383.02/1,352,084.86 = 685,485.08/x
  3. Step 3: Cross multiply
    979,383.02x = 1,352,084.86 × 685,485.08
  4. Step 4: Simplify right side
    979,383.02x = 926,833,994,819.29
  5. Step 5: Solve for x
    x = 926,833,994,819.29/979,383.02
  6. Step 6: Final answer
    x = 946,344.76

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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.