Home / 945,980.25-1,305,480.42-516,287.94

Finding the Fourth Proportional to 945,980.25, 1,305,480.42 and 516,287.94

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Solution

The fourth proportional to 945,980.25, 1,305,480.42 and 516,287.94 is: 712,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,980.25 : 1,305,480.42 = 516,287.94 : x
  2. Step 2: Convert to fraction form
    945,980.25/1,305,480.42 = 516,287.94/x
  3. Step 3: Cross multiply
    945,980.25x = 1,305,480.42 × 516,287.94
  4. Step 4: Simplify right side
    945,980.25x = 674,003,796,752.14
  5. Step 5: Solve for x
    x = 674,003,796,752.14/945,980.25
  6. Step 6: Final answer
    x = 712,492.46

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1.5x scale

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.