Home / 1,621,340.28-2,237,220.95-923,639.45

Finding the Fourth Proportional to 1,621,340.28, 2,237,220.95 and 923,639.45

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Solution

The fourth proportional to 1,621,340.28, 2,237,220.95 and 923,639.45 is: 1,274,492.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,340.28 : 2,237,220.95 = 923,639.45 : x
  2. Step 2: Convert to fraction form
    1,621,340.28/2,237,220.95 = 923,639.45/x
  3. Step 3: Cross multiply
    1,621,340.28x = 2,237,220.95 × 923,639.45
  4. Step 4: Simplify right side
    1,621,340.28x = 2,066,385,511,982.18
  5. Step 5: Solve for x
    x = 2,066,385,511,982.18/1,621,340.28
  6. Step 6: Final answer
    x = 1,274,492.18

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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.