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Finding the Fourth Proportional to 653,199.60, 979,861 and 253,870.94

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Solution

The fourth proportional to 653,199.60, 979,861 and 253,870.94 is: 380,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,199.60 : 979,861 = 253,870.94 : x
  2. Step 2: Convert to fraction form
    653,199.60/979,861 = 253,870.94/x
  3. Step 3: Cross multiply
    653,199.60x = 979,861 × 253,870.94
  4. Step 4: Simplify right side
    653,199.60x = 248,758,233,139.34
  5. Step 5: Solve for x
    x = 248,758,233,139.34/653,199.60
  6. Step 6: Final answer
    x = 380,830.35

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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.