Home / 949,639-1,310,501.22-519,919.02

Finding the Fourth Proportional to 949,639, 1,310,501.22 and 519,919.02

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Solution

The fourth proportional to 949,639, 1,310,501.22 and 519,919.02 is: 717,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,639 : 1,310,501.22 = 519,919.02 : x
  2. Step 2: Convert to fraction form
    949,639/1,310,501.22 = 519,919.02/x
  3. Step 3: Cross multiply
    949,639x = 1,310,501.22 × 519,919.02
  4. Step 4: Simplify right side
    949,639x = 681,354,510,011.21
  5. Step 5: Solve for x
    x = 681,354,510,011.21/949,639
  6. Step 6: Final answer
    x = 717,487.92

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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.