Home / 751,479.57-1,126,978.79-245,903.49

Finding the Fourth Proportional to 751,479.57, 1,126,978.79 and 245,903.49

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Solution

The fourth proportional to 751,479.57, 1,126,978.79 and 245,903.49 is: 368,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,479.57 : 1,126,978.79 = 245,903.49 : x
  2. Step 2: Convert to fraction form
    751,479.57/1,126,978.79 = 245,903.49/x
  3. Step 3: Cross multiply
    751,479.57x = 1,126,978.79 × 245,903.49
  4. Step 4: Simplify right side
    751,479.57x = 277,128,016,387.46
  5. Step 5: Solve for x
    x = 277,128,016,387.46/751,479.57
  6. Step 6: Final answer
    x = 368,776.51

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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.