Home / 460,386.90-635,431.95-309,396.42

Finding the Fourth Proportional to 460,386.90, 635,431.95 and 309,396.42

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Solution

The fourth proportional to 460,386.90, 635,431.95 and 309,396.42 is: 427,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,386.90 : 635,431.95 = 309,396.42 : x
  2. Step 2: Convert to fraction form
    460,386.90/635,431.95 = 309,396.42/x
  3. Step 3: Cross multiply
    460,386.90x = 635,431.95 × 309,396.42
  4. Step 4: Simplify right side
    460,386.90x = 196,600,370,483.62
  5. Step 5: Solve for x
    x = 196,600,370,483.62/460,386.90
  6. Step 6: Final answer
    x = 427,032.94

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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.