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Finding the Fourth Proportional to 533,817.89, 736,646.72 and 319,076.36

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Solution

The fourth proportional to 533,817.89, 736,646.72 and 319,076.36 is: 440,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,817.89 : 736,646.72 = 319,076.36 : x
  2. Step 2: Convert to fraction form
    533,817.89/736,646.72 = 319,076.36/x
  3. Step 3: Cross multiply
    533,817.89x = 736,646.72 × 319,076.36
  4. Step 4: Simplify right side
    533,817.89x = 235,046,551,138.00
  5. Step 5: Solve for x
    x = 235,046,551,138.00/533,817.89
  6. Step 6: Final answer
    x = 440,312.24

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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.