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Finding the Fourth Proportional to 538,737.52, 742,684.99 and 423,816.42

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Solution

The fourth proportional to 538,737.52, 742,684.99 and 423,816.42 is: 584,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,737.52 : 742,684.99 = 423,816.42 : x
  2. Step 2: Convert to fraction form
    538,737.52/742,684.99 = 423,816.42/x
  3. Step 3: Cross multiply
    538,737.52x = 742,684.99 × 423,816.42
  4. Step 4: Simplify right side
    538,737.52x = 314,762,089,936.11
  5. Step 5: Solve for x
    x = 314,762,089,936.11/538,737.52
  6. Step 6: Final answer
    x = 584,258.72

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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.