Home / 949,072.57-1,309,720.25-519,352.79

Finding the Fourth Proportional to 949,072.57, 1,309,720.25 and 519,352.79

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Solution

The fourth proportional to 949,072.57, 1,309,720.25 and 519,352.79 is: 716,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,072.57 : 1,309,720.25 = 519,352.79 : x
  2. Step 2: Convert to fraction form
    949,072.57/1,309,720.25 = 519,352.79/x
  3. Step 3: Cross multiply
    949,072.57x = 1,309,720.25 × 519,352.79
  4. Step 4: Simplify right side
    949,072.57x = 680,206,860,706.78
  5. Step 5: Solve for x
    x = 680,206,860,706.78/949,072.57
  6. Step 6: Final answer
    x = 716,706.90

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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.