Home / 466,281.44-643,700.76-305,383.04

Finding the Fourth Proportional to 466,281.44, 643,700.76 and 305,383.04

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Solution

The fourth proportional to 466,281.44, 643,700.76 and 305,383.04 is: 421,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,281.44 : 643,700.76 = 305,383.04 : x
  2. Step 2: Convert to fraction form
    466,281.44/643,700.76 = 305,383.04/x
  3. Step 3: Cross multiply
    466,281.44x = 643,700.76 × 305,383.04
  4. Step 4: Simplify right side
    466,281.44x = 196,575,294,939.11
  5. Step 5: Solve for x
    x = 196,575,294,939.11/466,281.44
  6. Step 6: Final answer
    x = 421,580.78

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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.