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Finding the Fourth Proportional to 492,836.40, 739,254.60 and 306,212.40

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Solution

The fourth proportional to 492,836.40, 739,254.60 and 306,212.40 is: 459,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,836.40 : 739,254.60 = 306,212.40 : x
  2. Step 2: Convert to fraction form
    492,836.40/739,254.60 = 306,212.40/x
  3. Step 3: Cross multiply
    492,836.40x = 739,254.60 × 306,212.40
  4. Step 4: Simplify right side
    492,836.40x = 226,368,925,277.04
  5. Step 5: Solve for x
    x = 226,368,925,277.04/492,836.40
  6. Step 6: Final answer
    x = 459,318.60

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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.