Home / 535,386.78-738,826.82-305,941.42

Finding the Fourth Proportional to 535,386.78, 738,826.82 and 305,941.42

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Solution

The fourth proportional to 535,386.78, 738,826.82 and 305,941.42 is: 422,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,386.78 : 738,826.82 = 305,941.42 : x
  2. Step 2: Convert to fraction form
    535,386.78/738,826.82 = 305,941.42/x
  3. Step 3: Cross multiply
    535,386.78x = 738,826.82 × 305,941.42
  4. Step 4: Simplify right side
    535,386.78x = 226,037,726,985.99
  5. Step 5: Solve for x
    x = 226,037,726,985.99/535,386.78
  6. Step 6: Final answer
    x = 422,195.20

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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.