Home / 751,689.76-1,127,381.64-278,262.60

Finding the Fourth Proportional to 751,689.76, 1,127,381.64 and 278,262.60

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Solution

The fourth proportional to 751,689.76, 1,127,381.64 and 278,262.60 is: 417,337.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,689.76 : 1,127,381.64 = 278,262.60 : x
  2. Step 2: Convert to fraction form
    751,689.76/1,127,381.64 = 278,262.60/x
  3. Step 3: Cross multiply
    751,689.76x = 1,127,381.64 × 278,262.60
  4. Step 4: Simplify right side
    751,689.76x = 313,708,146,338.66
  5. Step 5: Solve for x
    x = 313,708,146,338.66/751,689.76
  6. Step 6: Final answer
    x = 417,337.26

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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.