Home / 751,323-1,127,426.76-278,338.08

Finding the Fourth Proportional to 751,323, 1,127,426.76 and 278,338.08

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Solution

The fourth proportional to 751,323, 1,127,426.76 and 278,338.08 is: 417,670.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,323 : 1,127,426.76 = 278,338.08 : x
  2. Step 2: Convert to fraction form
    751,323/1,127,426.76 = 278,338.08/x
  3. Step 3: Cross multiply
    751,323x = 1,127,426.76 × 278,338.08
  4. Step 4: Simplify right side
    751,323x = 313,805,799,719.02
  5. Step 5: Solve for x
    x = 313,805,799,719.02/751,323
  6. Step 6: Final answer
    x = 417,670.96

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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.