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Finding the Fourth Proportional to 608,838.40, 913,257.60 and 328,902.40

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Solution

The fourth proportional to 608,838.40, 913,257.60 and 328,902.40 is: 493,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,838.40 : 913,257.60 = 328,902.40 : x
  2. Step 2: Convert to fraction form
    608,838.40/913,257.60 = 328,902.40/x
  3. Step 3: Cross multiply
    608,838.40x = 913,257.60 × 328,902.40
  4. Step 4: Simplify right side
    608,838.40x = 300,372,616,458.24
  5. Step 5: Solve for x
    x = 300,372,616,458.24/608,838.40
  6. Step 6: Final answer
    x = 493,353.60

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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.