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Finding the Fourth Proportional to 380,046.96, 570,952.80 and 359,640

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Solution

The fourth proportional to 380,046.96, 570,952.80 and 359,640 is: 540,294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,046.96 : 570,952.80 = 359,640 : x
  2. Step 2: Convert to fraction form
    380,046.96/570,952.80 = 359,640/x
  3. Step 3: Cross multiply
    380,046.96x = 570,952.80 × 359,640
  4. Step 4: Simplify right side
    380,046.96x = 205,337,464,992.00
  5. Step 5: Solve for x
    x = 205,337,464,992.00/380,046.96
  6. Step 6: Final answer
    x = 540,294.98

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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.