Home / 382,427.30-573,640.95-256,456.10

Finding the Fourth Proportional to 382,427.30, 573,640.95 and 256,456.10

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Solution

The fourth proportional to 382,427.30, 573,640.95 and 256,456.10 is: 384,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,427.30 : 573,640.95 = 256,456.10 : x
  2. Step 2: Convert to fraction form
    382,427.30/573,640.95 = 256,456.10/x
  3. Step 3: Cross multiply
    382,427.30x = 573,640.95 × 256,456.10
  4. Step 4: Simplify right side
    382,427.30x = 147,113,720,837.30
  5. Step 5: Solve for x
    x = 147,113,720,837.30/382,427.30
  6. Step 6: Final answer
    x = 384,684.15

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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.