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Finding the Fourth Proportional to 607,320.40, 910,980.60 and 327,384.40

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Solution

The fourth proportional to 607,320.40, 910,980.60 and 327,384.40 is: 491,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,320.40 : 910,980.60 = 327,384.40 : x
  2. Step 2: Convert to fraction form
    607,320.40/910,980.60 = 327,384.40/x
  3. Step 3: Cross multiply
    607,320.40x = 910,980.60 × 327,384.40
  4. Step 4: Simplify right side
    607,320.40x = 298,240,837,142.64
  5. Step 5: Solve for x
    x = 298,240,837,142.64/607,320.40
  6. Step 6: Final answer
    x = 491,076.60

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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.