Home / 751,371.12-1,127,498.96-278,386.24

Finding the Fourth Proportional to 751,371.12, 1,127,498.96 and 278,386.24

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Solution

The fourth proportional to 751,371.12, 1,127,498.96 and 278,386.24 is: 417,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,371.12 : 1,127,498.96 = 278,386.24 : x
  2. Step 2: Convert to fraction form
    751,371.12/1,127,498.96 = 278,386.24/x
  3. Step 3: Cross multiply
    751,371.12x = 1,127,498.96 × 278,386.24
  4. Step 4: Simplify right side
    751,371.12x = 313,880,196,078.31
  5. Step 5: Solve for x
    x = 313,880,196,078.31/751,371.12
  6. Step 6: Final answer
    x = 417,743.23

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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.