Home / 751,486.20-1,126,988.72-245,910.12

Finding the Fourth Proportional to 751,486.20, 1,126,988.72 and 245,910.12

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Solution

The fourth proportional to 751,486.20, 1,126,988.72 and 245,910.12 is: 368,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,486.20 : 1,126,988.72 = 245,910.12 : x
  2. Step 2: Convert to fraction form
    751,486.20/1,126,988.72 = 245,910.12/x
  3. Step 3: Cross multiply
    751,486.20x = 1,126,988.72 × 245,910.12
  4. Step 4: Simplify right side
    751,486.20x = 277,137,931,373.85
  5. Step 5: Solve for x
    x = 277,137,931,373.85/751,486.20
  6. Step 6: Final answer
    x = 368,786.45

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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.