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Finding the Fourth Proportional to 440,647.86, 608,097.90 and 239,443.86

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Solution

The fourth proportional to 440,647.86, 608,097.90 and 239,443.86 is: 330,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,647.86 : 608,097.90 = 239,443.86 : x
  2. Step 2: Convert to fraction form
    440,647.86/608,097.90 = 239,443.86/x
  3. Step 3: Cross multiply
    440,647.86x = 608,097.90 × 239,443.86
  4. Step 4: Simplify right side
    440,647.86x = 145,605,308,433.89
  5. Step 5: Solve for x
    x = 145,605,308,433.89/440,647.86
  6. Step 6: Final answer
    x = 330,434.62

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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.