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Finding the Fourth Proportional to 492,217.60, 679,274.40 and 277,345.84

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Solution

The fourth proportional to 492,217.60, 679,274.40 and 277,345.84 is: 382,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,217.60 : 679,274.40 = 277,345.84 : x
  2. Step 2: Convert to fraction form
    492,217.60/679,274.40 = 277,345.84/x
  3. Step 3: Cross multiply
    492,217.60x = 679,274.40 × 277,345.84
  4. Step 4: Simplify right side
    492,217.60x = 188,393,929,058.50
  5. Step 5: Solve for x
    x = 188,393,929,058.50/492,217.60
  6. Step 6: Final answer
    x = 382,745.21

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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.