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Finding the Fourth Proportional to 557,090.64, 768,391.58 and 342,351.52

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Solution

The fourth proportional to 557,090.64, 768,391.58 and 342,351.52 is: 472,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,090.64 : 768,391.58 = 342,351.52 : x
  2. Step 2: Convert to fraction form
    557,090.64/768,391.58 = 342,351.52/x
  3. Step 3: Cross multiply
    557,090.64x = 768,391.58 × 342,351.52
  4. Step 4: Simplify right side
    557,090.64x = 263,060,025,368.20
  5. Step 5: Solve for x
    x = 263,060,025,368.20/557,090.64
  6. Step 6: Final answer
    x = 472,203.28

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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.