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Finding the Fourth Proportional to 428,483.88, 591,343.14 and 237,557.16

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Solution

The fourth proportional to 428,483.88, 591,343.14 and 237,557.16 is: 327,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,483.88 : 591,343.14 = 237,557.16 : x
  2. Step 2: Convert to fraction form
    428,483.88/591,343.14 = 237,557.16/x
  3. Step 3: Cross multiply
    428,483.88x = 591,343.14 × 237,557.16
  4. Step 4: Simplify right side
    428,483.88x = 140,477,796,923.88
  5. Step 5: Solve for x
    x = 140,477,796,923.88/428,483.88
  6. Step 6: Final answer
    x = 327,848.50

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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.