Home / 695,727.20-1,042,381.20-320,981.60

Finding the Fourth Proportional to 695,727.20, 1,042,381.20 and 320,981.60

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Solution

The fourth proportional to 695,727.20, 1,042,381.20 and 320,981.60 is: 480,914.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,727.20 : 1,042,381.20 = 320,981.60 : x
  2. Step 2: Convert to fraction form
    695,727.20/1,042,381.20 = 320,981.60/x
  3. Step 3: Cross multiply
    695,727.20x = 1,042,381.20 × 320,981.60
  4. Step 4: Simplify right side
    695,727.20x = 334,585,185,385.92
  5. Step 5: Solve for x
    x = 334,585,185,385.92/695,727.20
  6. Step 6: Final answer
    x = 480,914.34

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1.5x scale

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.