Home / 948,643.47-1,309,110.78-518,919.84

Finding the Fourth Proportional to 948,643.47, 1,309,110.78 and 518,919.84

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Solution

The fourth proportional to 948,643.47, 1,309,110.78 and 518,919.84 is: 716,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,643.47 : 1,309,110.78 = 518,919.84 : x
  2. Step 2: Convert to fraction form
    948,643.47/1,309,110.78 = 518,919.84/x
  3. Step 3: Cross multiply
    948,643.47x = 1,309,110.78 × 518,919.84
  4. Step 4: Simplify right side
    948,643.47x = 679,323,556,499.88
  5. Step 5: Solve for x
    x = 679,323,556,499.88/948,643.47
  6. Step 6: Final answer
    x = 716,099.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.