Home / 718,271.12-991,221.04-395,993.04

Finding the Fourth Proportional to 718,271.12, 991,221.04 and 395,993.04

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Solution

The fourth proportional to 718,271.12, 991,221.04 and 395,993.04 is: 546,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,271.12 : 991,221.04 = 395,993.04 : x
  2. Step 2: Convert to fraction form
    718,271.12/991,221.04 = 395,993.04/x
  3. Step 3: Cross multiply
    718,271.12x = 991,221.04 × 395,993.04
  4. Step 4: Simplify right side
    718,271.12x = 392,516,632,941.56
  5. Step 5: Solve for x
    x = 392,516,632,941.56/718,271.12
  6. Step 6: Final answer
    x = 546,474.20

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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.