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Finding the Fourth Proportional to 602,090.31, 903,020.52 and 302,487.72

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Solution

The fourth proportional to 602,090.31, 903,020.52 and 302,487.72 is: 453,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,090.31 : 903,020.52 = 302,487.72 : x
  2. Step 2: Convert to fraction form
    602,090.31/903,020.52 = 302,487.72/x
  3. Step 3: Cross multiply
    602,090.31x = 903,020.52 × 302,487.72
  4. Step 4: Simplify right side
    602,090.31x = 273,152,618,208.01
  5. Step 5: Solve for x
    x = 273,152,618,208.01/602,090.31
  6. Step 6: Final answer
    x = 453,673.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.