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Finding the Fourth Proportional to 659,235.96, 988,892.55 and 254,430.36

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Solution

The fourth proportional to 659,235.96, 988,892.55 and 254,430.36 is: 381,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,235.96 : 988,892.55 = 254,430.36 : x
  2. Step 2: Convert to fraction form
    659,235.96/988,892.55 = 254,430.36/x
  3. Step 3: Cross multiply
    659,235.96x = 988,892.55 × 254,430.36
  4. Step 4: Simplify right side
    659,235.96x = 251,604,287,497.82
  5. Step 5: Solve for x
    x = 251,604,287,497.82/659,235.96
  6. Step 6: Final answer
    x = 381,660.44

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1.5x scale

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.