Home / 1,188,002.80-1,782,004.20-731,357.20

Finding the Fourth Proportional to 1,188,002.80, 1,782,004.20 and 731,357.20

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Solution

The fourth proportional to 1,188,002.80, 1,782,004.20 and 731,357.20 is: 1,097,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,002.80 : 1,782,004.20 = 731,357.20 : x
  2. Step 2: Convert to fraction form
    1,188,002.80/1,782,004.20 = 731,357.20/x
  3. Step 3: Cross multiply
    1,188,002.80x = 1,782,004.20 × 731,357.20
  4. Step 4: Simplify right side
    1,188,002.80x = 1,303,281,602,100.24
  5. Step 5: Solve for x
    x = 1,303,281,602,100.24/1,188,002.80
  6. Step 6: Final answer
    x = 1,097,035.80

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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.