Home / 751,485.20-1,126,987.22-245,909.12

Finding the Fourth Proportional to 751,485.20, 1,126,987.22 and 245,909.12

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Solution

The fourth proportional to 751,485.20, 1,126,987.22 and 245,909.12 is: 368,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,485.20 : 1,126,987.22 = 245,909.12 : x
  2. Step 2: Convert to fraction form
    751,485.20/1,126,987.22 = 245,909.12/x
  3. Step 3: Cross multiply
    751,485.20x = 1,126,987.22 × 245,909.12
  4. Step 4: Simplify right side
    751,485.20x = 277,136,430,501.28
  5. Step 5: Solve for x
    x = 277,136,430,501.28/751,485.20
  6. Step 6: Final answer
    x = 368,784.95

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Double scale
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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.