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Finding the Fourth Proportional to 502,567.28, 693,311.64 and 308,799.08

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Solution

The fourth proportional to 502,567.28, 693,311.64 and 308,799.08 is: 426,000.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,567.28 : 693,311.64 = 308,799.08 : x
  2. Step 2: Convert to fraction form
    502,567.28/693,311.64 = 308,799.08/x
  3. Step 3: Cross multiply
    502,567.28x = 693,311.64 × 308,799.08
  4. Step 4: Simplify right side
    502,567.28x = 214,093,996,585.29
  5. Step 5: Solve for x
    x = 214,093,996,585.29/502,567.28
  6. Step 6: Final answer
    x = 426,000.67

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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.