Home / 698,195.90-1,046,309.70-431,163.20

Finding the Fourth Proportional to 698,195.90, 1,046,309.70 and 431,163.20

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Solution

The fourth proportional to 698,195.90, 1,046,309.70 and 431,163.20 is: 646,137.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,195.90 : 1,046,309.70 = 431,163.20 : x
  2. Step 2: Convert to fraction form
    698,195.90/1,046,309.70 = 431,163.20/x
  3. Step 3: Cross multiply
    698,195.90x = 1,046,309.70 × 431,163.20
  4. Step 4: Simplify right side
    698,195.90x = 451,130,238,443.04
  5. Step 5: Solve for x
    x = 451,130,238,443.04/698,195.90
  6. Step 6: Final answer
    x = 646,137.05

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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.