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Finding the Fourth Proportional to 673,654.76, 929,650.02 and 371,842.28

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Solution

The fourth proportional to 673,654.76, 929,650.02 and 371,842.28 is: 513,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,654.76 : 929,650.02 = 371,842.28 : x
  2. Step 2: Convert to fraction form
    673,654.76/929,650.02 = 371,842.28/x
  3. Step 3: Cross multiply
    673,654.76x = 929,650.02 × 371,842.28
  4. Step 4: Simplify right side
    673,654.76x = 345,683,183,038.85
  5. Step 5: Solve for x
    x = 345,683,183,038.85/673,654.76
  6. Step 6: Final answer
    x = 513,145.91

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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.