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Finding the Fourth Proportional to 515,393.74, 773,090.52 and 302,485.60

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Solution

The fourth proportional to 515,393.74, 773,090.52 and 302,485.60 is: 453,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,393.74 : 773,090.52 = 302,485.60 : x
  2. Step 2: Convert to fraction form
    515,393.74/773,090.52 = 302,485.60/x
  3. Step 3: Cross multiply
    515,393.74x = 773,090.52 × 302,485.60
  4. Step 4: Simplify right side
    515,393.74x = 233,848,749,796.51
  5. Step 5: Solve for x
    x = 233,848,749,796.51/515,393.74
  6. Step 6: Final answer
    x = 453,728.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.