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Finding the Fourth Proportional to 847,245, 1,271,392.74 and 492,426.12

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Solution

The fourth proportional to 847,245, 1,271,392.74 and 492,426.12 is: 738,944.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,245 : 1,271,392.74 = 492,426.12 : x
  2. Step 2: Convert to fraction form
    847,245/1,271,392.74 = 492,426.12/x
  3. Step 3: Cross multiply
    847,245x = 1,271,392.74 × 492,426.12
  4. Step 4: Simplify right side
    847,245x = 626,066,993,954.37
  5. Step 5: Solve for x
    x = 626,066,993,954.37/847,245
  6. Step 6: Final answer
    x = 738,944.45

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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.