Home / 1,129,142.25-1,689,459.53-792,847.26

Finding the Fourth Proportional to 1,129,142.25, 1,689,459.53 and 792,847.26

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Solution

The fourth proportional to 1,129,142.25, 1,689,459.53 and 792,847.26 is: 1,186,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,142.25 : 1,689,459.53 = 792,847.26 : x
  2. Step 2: Convert to fraction form
    1,129,142.25/1,689,459.53 = 792,847.26/x
  3. Step 3: Cross multiply
    1,129,142.25x = 1,689,459.53 × 792,847.26
  4. Step 4: Simplify right side
    1,129,142.25x = 1,339,483,355,277.15
  5. Step 5: Solve for x
    x = 1,339,483,355,277.15/1,129,142.25
  6. Step 6: Final answer
    x = 1,186,283.97

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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.