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Finding the Fourth Proportional to 497,318.00, 685,999.69 and 303,637.28

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Solution

The fourth proportional to 497,318.00, 685,999.69 and 303,637.28 is: 418,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,318.00 : 685,999.69 = 303,637.28 : x
  2. Step 2: Convert to fraction form
    497,318.00/685,999.69 = 303,637.28/x
  3. Step 3: Cross multiply
    497,318.00x = 685,999.69 × 303,637.28
  4. Step 4: Simplify right side
    497,318.00x = 208,295,075,763.35
  5. Step 5: Solve for x
    x = 208,295,075,763.35/497,318.00
  6. Step 6: Final answer
    x = 418,836.80

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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.