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Finding the Fourth Proportional to 1,318,352.83, 1,977,325.25 and 508,619.15

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Solution

The fourth proportional to 1,318,352.83, 1,977,325.25 and 508,619.15 is: 762,850.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,352.83 : 1,977,325.25 = 508,619.15 : x
  2. Step 2: Convert to fraction form
    1,318,352.83/1,977,325.25 = 508,619.15/x
  3. Step 3: Cross multiply
    1,318,352.83x = 1,977,325.25 × 508,619.15
  4. Step 4: Simplify right side
    1,318,352.83x = 1,005,705,479,313.46
  5. Step 5: Solve for x
    x = 1,005,705,479,313.46/1,318,352.83
  6. Step 6: Final answer
    x = 762,850.02

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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.