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Finding the Fourth Proportional to 492,776.80, 680,030.24 and 277,915.60

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Solution

The fourth proportional to 492,776.80, 680,030.24 and 277,915.60 is: 383,522.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,776.80 : 680,030.24 = 277,915.60 : x
  2. Step 2: Convert to fraction form
    492,776.80/680,030.24 = 277,915.60/x
  3. Step 3: Cross multiply
    492,776.80x = 680,030.24 × 277,915.60
  4. Step 4: Simplify right side
    492,776.80x = 188,991,012,167.74
  5. Step 5: Solve for x
    x = 188,991,012,167.74/492,776.80
  6. Step 6: Final answer
    x = 383,522.54

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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.