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Finding the Fourth Proportional to 507,861.56, 700,830.16 and 275,283.50

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Solution

The fourth proportional to 507,861.56, 700,830.16 and 275,283.50 is: 379,881.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,861.56 : 700,830.16 = 275,283.50 : x
  2. Step 2: Convert to fraction form
    507,861.56/700,830.16 = 275,283.50/x
  3. Step 3: Cross multiply
    507,861.56x = 700,830.16 × 275,283.50
  4. Step 4: Simplify right side
    507,861.56x = 192,926,979,350.36
  5. Step 5: Solve for x
    x = 192,926,979,350.36/507,861.56
  6. Step 6: Final answer
    x = 379,881.04

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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.