Home / 1,388,818.90-2,083,394.76-490,075

Finding the Fourth Proportional to 1,388,818.90, 2,083,394.76 and 490,075

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Solution

The fourth proportional to 1,388,818.90, 2,083,394.76 and 490,075 is: 735,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,818.90 : 2,083,394.76 = 490,075 : x
  2. Step 2: Convert to fraction form
    1,388,818.90/2,083,394.76 = 490,075/x
  3. Step 3: Cross multiply
    1,388,818.90x = 2,083,394.76 × 490,075
  4. Step 4: Simplify right side
    1,388,818.90x = 1,021,019,687,007
  5. Step 5: Solve for x
    x = 1,021,019,687,007/1,388,818.90
  6. Step 6: Final answer
    x = 735,171.22

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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.