Home / 751,479.16-1,127,366.52-278,168.64

Finding the Fourth Proportional to 751,479.16, 1,127,366.52 and 278,168.64

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Solution

The fourth proportional to 751,479.16, 1,127,366.52 and 278,168.64 is: 417,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,479.16 : 1,127,366.52 = 278,168.64 : x
  2. Step 2: Convert to fraction form
    751,479.16/1,127,366.52 = 278,168.64/x
  3. Step 3: Cross multiply
    751,479.16x = 1,127,366.52 × 278,168.64
  4. Step 4: Simplify right side
    751,479.16x = 313,598,011,649.93
  5. Step 5: Solve for x
    x = 313,598,011,649.93/751,479.16
  6. Step 6: Final answer
    x = 417,307.66

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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.