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Finding the Fourth Proportional to 550,605.54, 759,840.84 and 308,893.32

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Solution

The fourth proportional to 550,605.54, 759,840.84 and 308,893.32 is: 426,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,605.54 : 759,840.84 = 308,893.32 : x
  2. Step 2: Convert to fraction form
    550,605.54/759,840.84 = 308,893.32/x
  3. Step 3: Cross multiply
    550,605.54x = 759,840.84 × 308,893.32
  4. Step 4: Simplify right side
    550,605.54x = 234,709,761,441.86
  5. Step 5: Solve for x
    x = 234,709,761,441.86/550,605.54
  6. Step 6: Final answer
    x = 426,275.70

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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.