Home / 1,222,471.53-1,686,926.32-678,564.52

Finding the Fourth Proportional to 1,222,471.53, 1,686,926.32 and 678,564.52

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Solution

The fourth proportional to 1,222,471.53, 1,686,926.32 and 678,564.52 is: 936,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,471.53 : 1,686,926.32 = 678,564.52 : x
  2. Step 2: Convert to fraction form
    1,222,471.53/1,686,926.32 = 678,564.52/x
  3. Step 3: Cross multiply
    1,222,471.53x = 1,686,926.32 × 678,564.52
  4. Step 4: Simplify right side
    1,222,471.53x = 1,144,688,342,692.44
  5. Step 5: Solve for x
    x = 1,144,688,342,692.44/1,222,471.53
  6. Step 6: Final answer
    x = 936,372.19

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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.