Home / 708,976.80-1,064,242.80-443,037.60

Finding the Fourth Proportional to 708,976.80, 1,064,242.80 and 443,037.60

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Solution

The fourth proportional to 708,976.80, 1,064,242.80 and 443,037.60 is: 665,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,976.80 : 1,064,242.80 = 443,037.60 : x
  2. Step 2: Convert to fraction form
    708,976.80/1,064,242.80 = 443,037.60/x
  3. Step 3: Cross multiply
    708,976.80x = 1,064,242.80 × 443,037.60
  4. Step 4: Simplify right side
    708,976.80x = 471,499,575,929.28
  5. Step 5: Solve for x
    x = 471,499,575,929.28/708,976.80
  6. Step 6: Final answer
    x = 665,042.32

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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.