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Finding the Fourth Proportional to 554,330.62, 764,978.08 and 299,683.64

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Solution

The fourth proportional to 554,330.62, 764,978.08 and 299,683.64 is: 413,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,330.62 : 764,978.08 = 299,683.64 : x
  2. Step 2: Convert to fraction form
    554,330.62/764,978.08 = 299,683.64/x
  3. Step 3: Cross multiply
    554,330.62x = 764,978.08 × 299,683.64
  4. Step 4: Simplify right side
    554,330.62x = 229,251,415,534.61
  5. Step 5: Solve for x
    x = 229,251,415,534.61/554,330.62
  6. Step 6: Final answer
    x = 413,564.41

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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.