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Finding the Fourth Proportional to 493,014.90, 680,360.54 and 266,660.40

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Solution

The fourth proportional to 493,014.90, 680,360.54 and 266,660.40 is: 367,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,014.90 : 680,360.54 = 266,660.40 : x
  2. Step 2: Convert to fraction form
    493,014.90/680,360.54 = 266,660.40/x
  3. Step 3: Cross multiply
    493,014.90x = 680,360.54 × 266,660.40
  4. Step 4: Simplify right side
    493,014.90x = 181,425,213,740.62
  5. Step 5: Solve for x
    x = 181,425,213,740.62/493,014.90
  6. Step 6: Final answer
    x = 367,991.34

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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.