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Finding the Fourth Proportional to 494,970.48, 683,069.49 and 280,110.49

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Solution

The fourth proportional to 494,970.48, 683,069.49 and 280,110.49 is: 386,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,970.48 : 683,069.49 = 280,110.49 : x
  2. Step 2: Convert to fraction form
    494,970.48/683,069.49 = 280,110.49/x
  3. Step 3: Cross multiply
    494,970.48x = 683,069.49 × 280,110.49
  4. Step 4: Simplify right side
    494,970.48x = 191,334,927,840.28
  5. Step 5: Solve for x
    x = 191,334,927,840.28/494,970.48
  6. Step 6: Final answer
    x = 386,558.26

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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.