Home / 1,677,390.22-2,314,491.01-989,277.40

Finding the Fourth Proportional to 1,677,390.22, 2,314,491.01 and 989,277.40

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Solution

The fourth proportional to 1,677,390.22, 2,314,491.01 and 989,277.40 is: 1,365,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,390.22 : 2,314,491.01 = 989,277.40 : x
  2. Step 2: Convert to fraction form
    1,677,390.22/2,314,491.01 = 989,277.40/x
  3. Step 3: Cross multiply
    1,677,390.22x = 2,314,491.01 × 989,277.40
  4. Step 4: Simplify right side
    1,677,390.22x = 2,289,673,654,680.78
  5. Step 5: Solve for x
    x = 2,289,673,654,680.78/1,677,390.22
  6. Step 6: Final answer
    x = 1,365,021.46

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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.