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Finding the Fourth Proportional to 492,741.40, 739,403.70 and 324,747.40

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Solution

The fourth proportional to 492,741.40, 739,403.70 and 324,747.40 is: 487,313.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,741.40 : 739,403.70 = 324,747.40 : x
  2. Step 2: Convert to fraction form
    492,741.40/739,403.70 = 324,747.40/x
  3. Step 3: Cross multiply
    492,741.40x = 739,403.70 × 324,747.40
  4. Step 4: Simplify right side
    492,741.40x = 240,119,429,125.38
  5. Step 5: Solve for x
    x = 240,119,429,125.38/492,741.40
  6. Step 6: Final answer
    x = 487,313.28

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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.