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Finding the Fourth Proportional to 492,453.02, 679,544.34 and 277,645.88

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Solution

The fourth proportional to 492,453.02, 679,544.34 and 277,645.88 is: 383,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,453.02 : 679,544.34 = 277,645.88 : x
  2. Step 2: Convert to fraction form
    492,453.02/679,544.34 = 277,645.88/x
  3. Step 3: Cross multiply
    492,453.02x = 679,544.34 × 277,645.88
  4. Step 4: Simplify right side
    492,453.02x = 188,672,686,278.32
  5. Step 5: Solve for x
    x = 188,672,686,278.32/492,453.02
  6. Step 6: Final answer
    x = 383,128.30

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1.5x scale

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.