Home / 805,887.20-1,209,128.40-332,613.60

Finding the Fourth Proportional to 805,887.20, 1,209,128.40 and 332,613.60

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Solution

The fourth proportional to 805,887.20, 1,209,128.40 and 332,613.60 is: 499,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,887.20 : 1,209,128.40 = 332,613.60 : x
  2. Step 2: Convert to fraction form
    805,887.20/1,209,128.40 = 332,613.60/x
  3. Step 3: Cross multiply
    805,887.20x = 1,209,128.40 × 332,613.60
  4. Step 4: Simplify right side
    805,887.20x = 402,172,549,986.24
  5. Step 5: Solve for x
    x = 402,172,549,986.24/805,887.20
  6. Step 6: Final answer
    x = 499,043.23

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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.