Home / 697,976.10-1,047,948.30-432,255.60

Finding the Fourth Proportional to 697,976.10, 1,047,948.30 and 432,255.60

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Solution

The fourth proportional to 697,976.10, 1,047,948.30 and 432,255.60 is: 648,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,976.10 : 1,047,948.30 = 432,255.60 : x
  2. Step 2: Convert to fraction form
    697,976.10/1,047,948.30 = 432,255.60/x
  3. Step 3: Cross multiply
    697,976.10x = 1,047,948.30 × 432,255.60
  4. Step 4: Simplify right side
    697,976.10x = 452,981,521,185.48
  5. Step 5: Solve for x
    x = 452,981,521,185.48/697,976.10
  6. Step 6: Final answer
    x = 648,992.88

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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.