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Finding the Fourth Proportional to 384,076.40, 576,114.60 and 321,868.40

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Solution

The fourth proportional to 384,076.40, 576,114.60 and 321,868.40 is: 482,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,076.40 : 576,114.60 = 321,868.40 : x
  2. Step 2: Convert to fraction form
    384,076.40/576,114.60 = 321,868.40/x
  3. Step 3: Cross multiply
    384,076.40x = 576,114.60 × 321,868.40
  4. Step 4: Simplify right side
    384,076.40x = 185,433,084,518.64
  5. Step 5: Solve for x
    x = 185,433,084,518.64/384,076.40
  6. Step 6: Final answer
    x = 482,802.60

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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.