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Finding the Fourth Proportional to 673,686.70, 929,654.98 and 383,270.92

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Solution

The fourth proportional to 673,686.70, 929,654.98 and 383,270.92 is: 528,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,686.70 : 929,654.98 = 383,270.92 : x
  2. Step 2: Convert to fraction form
    673,686.70/929,654.98 = 383,270.92/x
  3. Step 3: Cross multiply
    673,686.70x = 929,654.98 × 383,270.92
  4. Step 4: Simplify right side
    673,686.70x = 356,309,719,467.18
  5. Step 5: Solve for x
    x = 356,309,719,467.18/673,686.70
  6. Step 6: Final answer
    x = 528,895.29

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1.5x scale

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.