Home / 942,911.21-1,301,217.48-513,194.47

Finding the Fourth Proportional to 942,911.21, 1,301,217.48 and 513,194.47

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Solution

The fourth proportional to 942,911.21, 1,301,217.48 and 513,194.47 is: 708,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,911.21 : 1,301,217.48 = 513,194.47 : x
  2. Step 2: Convert to fraction form
    942,911.21/1,301,217.48 = 513,194.47/x
  3. Step 3: Cross multiply
    942,911.21x = 1,301,217.48 × 513,194.47
  4. Step 4: Simplify right side
    942,911.21x = 667,777,611,750.29
  5. Step 5: Solve for x
    x = 667,777,611,750.29/942,911.21
  6. Step 6: Final answer
    x = 708,208.37

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1.5x scale

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.