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Finding the Fourth Proportional to 507,861.55, 700,844.47 and 278,414.67

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Solution

The fourth proportional to 507,861.55, 700,844.47 and 278,414.67 is: 384,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,861.55 : 700,844.47 = 278,414.67 : x
  2. Step 2: Convert to fraction form
    507,861.55/700,844.47 = 278,414.67/x
  3. Step 3: Cross multiply
    507,861.55x = 700,844.47 × 278,414.67
  4. Step 4: Simplify right side
    507,861.55x = 195,125,381,836.38
  5. Step 5: Solve for x
    x = 195,125,381,836.38/507,861.55
  6. Step 6: Final answer
    x = 384,209.79

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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.