Home / 1,891,172.47-2,609,805.64-1,075,376.21

Finding the Fourth Proportional to 1,891,172.47, 2,609,805.64 and 1,075,376.21

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Solution

The fourth proportional to 1,891,172.47, 2,609,805.64 and 1,075,376.21 is: 1,484,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,172.47 : 2,609,805.64 = 1,075,376.21 : x
  2. Step 2: Convert to fraction form
    1,891,172.47/2,609,805.64 = 1,075,376.21/x
  3. Step 3: Cross multiply
    1,891,172.47x = 2,609,805.64 × 1,075,376.21
  4. Step 4: Simplify right side
    1,891,172.47x = 2,806,522,901,963.34
  5. Step 5: Solve for x
    x = 2,806,522,901,963.34/1,891,172.47
  6. Step 6: Final answer
    x = 1,484,012.14

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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.