Home / 949,138.92-1,309,811.76-519,419.16

Finding the Fourth Proportional to 949,138.92, 1,309,811.76 and 519,419.16

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Solution

The fourth proportional to 949,138.92, 1,309,811.76 and 519,419.16 is: 716,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,138.92 : 1,309,811.76 = 519,419.16 : x
  2. Step 2: Convert to fraction form
    949,138.92/1,309,811.76 = 519,419.16/x
  3. Step 3: Cross multiply
    949,138.92x = 1,309,811.76 × 519,419.16
  4. Step 4: Simplify right side
    949,138.92x = 680,341,324,137.32
  5. Step 5: Solve for x
    x = 680,341,324,137.32/949,138.92
  6. Step 6: Final answer
    x = 716,798.47

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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.