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Finding the Fourth Proportional to 506,071.33, 698,378.40 and 276,629.57

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Solution

The fourth proportional to 506,071.33, 698,378.40 and 276,629.57 is: 381,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,071.33 : 698,378.40 = 276,629.57 : x
  2. Step 2: Convert to fraction form
    506,071.33/698,378.40 = 276,629.57/x
  3. Step 3: Cross multiply
    506,071.33x = 698,378.40 × 276,629.57
  4. Step 4: Simplify right side
    506,071.33x = 193,192,119,286.02
  5. Step 5: Solve for x
    x = 193,192,119,286.02/506,071.33
  6. Step 6: Final answer
    x = 381,748.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.