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Finding the Fourth Proportional to 505,796.40, 758,573.10 and 292,102.20

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Solution

The fourth proportional to 505,796.40, 758,573.10 and 292,102.20 is: 438,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,796.40 : 758,573.10 = 292,102.20 : x
  2. Step 2: Convert to fraction form
    505,796.40/758,573.10 = 292,102.20/x
  3. Step 3: Cross multiply
    505,796.40x = 758,573.10 × 292,102.20
  4. Step 4: Simplify right side
    505,796.40x = 221,580,871,370.82
  5. Step 5: Solve for x
    x = 221,580,871,370.82/505,796.40
  6. Step 6: Final answer
    x = 438,083.13

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1.5x scale

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.