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Finding the Fourth Proportional to 561,260.67, 774,539.55 and 303,137.60

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Solution

The fourth proportional to 561,260.67, 774,539.55 and 303,137.60 is: 418,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,260.67 : 774,539.55 = 303,137.60 : x
  2. Step 2: Convert to fraction form
    561,260.67/774,539.55 = 303,137.60/x
  3. Step 3: Cross multiply
    561,260.67x = 774,539.55 × 303,137.60
  4. Step 4: Simplify right side
    561,260.67x = 234,792,060,460.67
  5. Step 5: Solve for x
    x = 234,792,060,460.67/561,260.67
  6. Step 6: Final answer
    x = 418,329.80

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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.