Home / 855,475.12-1,283,049.16-256,436.34

Finding the Fourth Proportional to 855,475.12, 1,283,049.16 and 256,436.34

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Solution

The fourth proportional to 855,475.12, 1,283,049.16 and 256,436.34 is: 384,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,475.12 : 1,283,049.16 = 256,436.34 : x
  2. Step 2: Convert to fraction form
    855,475.12/1,283,049.16 = 256,436.34/x
  3. Step 3: Cross multiply
    855,475.12x = 1,283,049.16 × 256,436.34
  4. Step 4: Simplify right side
    855,475.12x = 329,020,430,630.47
  5. Step 5: Solve for x
    x = 329,020,430,630.47/855,475.12
  6. Step 6: Final answer
    x = 384,605.49

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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.