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Finding the Fourth Proportional to 480,858.40, 719,905.20 and 294,234.40

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Solution

The fourth proportional to 480,858.40, 719,905.20 and 294,234.40 is: 440,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,858.40 : 719,905.20 = 294,234.40 : x
  2. Step 2: Convert to fraction form
    480,858.40/719,905.20 = 294,234.40/x
  3. Step 3: Cross multiply
    480,858.40x = 719,905.20 × 294,234.40
  4. Step 4: Simplify right side
    480,858.40x = 211,820,874,578.88
  5. Step 5: Solve for x
    x = 211,820,874,578.88/480,858.40
  6. Step 6: Final answer
    x = 440,505.72

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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.