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Finding the Fourth Proportional to 550,482.00, 759,671.53 and 305,471.78

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Solution

The fourth proportional to 550,482.00, 759,671.53 and 305,471.78 is: 421,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,482.00 : 759,671.53 = 305,471.78 : x
  2. Step 2: Convert to fraction form
    550,482.00/759,671.53 = 305,471.78/x
  3. Step 3: Cross multiply
    550,482.00x = 759,671.53 × 305,471.78
  4. Step 4: Simplify right side
    550,482.00x = 232,058,212,771.16
  5. Step 5: Solve for x
    x = 232,058,212,771.16/550,482.00
  6. Step 6: Final answer
    x = 421,554.59

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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.