Home / 722,536.20-1,083,804.30-455,430.60

Finding the Fourth Proportional to 722,536.20, 1,083,804.30 and 455,430.60

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Solution

The fourth proportional to 722,536.20, 1,083,804.30 and 455,430.60 is: 683,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,536.20 : 1,083,804.30 = 455,430.60 : x
  2. Step 2: Convert to fraction form
    722,536.20/1,083,804.30 = 455,430.60/x
  3. Step 3: Cross multiply
    722,536.20x = 1,083,804.30 × 455,430.60
  4. Step 4: Simplify right side
    722,536.20x = 493,597,642,631.58
  5. Step 5: Solve for x
    x = 493,597,642,631.58/722,536.20
  6. Step 6: Final answer
    x = 683,145.90

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1.5x scale

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.