Home / 1,988,072.48-2,745,157.96-1,620,607.28

Finding the Fourth Proportional to 1,988,072.48, 2,745,157.96 and 1,620,607.28

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Solution

The fourth proportional to 1,988,072.48, 2,745,157.96 and 1,620,607.28 is: 2,237,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,072.48 : 2,745,157.96 = 1,620,607.28 : x
  2. Step 2: Convert to fraction form
    1,988,072.48/2,745,157.96 = 1,620,607.28/x
  3. Step 3: Cross multiply
    1,988,072.48x = 2,745,157.96 × 1,620,607.28
  4. Step 4: Simplify right side
    1,988,072.48x = 4,448,822,974,725.95
  5. Step 5: Solve for x
    x = 4,448,822,974,725.95/1,988,072.48
  6. Step 6: Final answer
    x = 2,237,756.93

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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.