Home / 2,117,409.48-3,174,328.26-918,428.64

Finding the Fourth Proportional to 2,117,409.48, 3,174,328.26 and 918,428.64

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Solution

The fourth proportional to 2,117,409.48, 3,174,328.26 and 918,428.64 is: 1,376,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,409.48 : 3,174,328.26 = 918,428.64 : x
  2. Step 2: Convert to fraction form
    2,117,409.48/3,174,328.26 = 918,428.64/x
  3. Step 3: Cross multiply
    2,117,409.48x = 3,174,328.26 × 918,428.64
  4. Step 4: Simplify right side
    2,117,409.48x = 2,915,393,986,745.37
  5. Step 5: Solve for x
    x = 2,915,393,986,745.37/2,117,409.48
  6. Step 6: Final answer
    x = 1,376,868.30

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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.