Home / 1,331,060.55-1,995,791.10-520,479.37

Finding the Fourth Proportional to 1,331,060.55, 1,995,791.10 and 520,479.37

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Solution

The fourth proportional to 1,331,060.55, 1,995,791.10 and 520,479.37 is: 780,406.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,060.55 : 1,995,791.10 = 520,479.37 : x
  2. Step 2: Convert to fraction form
    1,331,060.55/1,995,791.10 = 520,479.37/x
  3. Step 3: Cross multiply
    1,331,060.55x = 1,995,791.10 × 520,479.37
  4. Step 4: Simplify right side
    1,331,060.55x = 1,038,768,094,922.55
  5. Step 5: Solve for x
    x = 1,038,768,094,922.55/1,331,060.55
  6. Step 6: Final answer
    x = 780,406.34

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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.