Home / 751,939.44-1,127,980.56-272,288.40

Finding the Fourth Proportional to 751,939.44, 1,127,980.56 and 272,288.40

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Solution

The fourth proportional to 751,939.44, 1,127,980.56 and 272,288.40 is: 408,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,939.44 : 1,127,980.56 = 272,288.40 : x
  2. Step 2: Convert to fraction form
    751,939.44/1,127,980.56 = 272,288.40/x
  3. Step 3: Cross multiply
    751,939.44x = 1,127,980.56 × 272,288.40
  4. Step 4: Simplify right side
    751,939.44x = 307,136,021,913.50
  5. Step 5: Solve for x
    x = 307,136,021,913.50/751,939.44
  6. Step 6: Final answer
    x = 408,458.45

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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.