Home / 1,191,172.42-1,643,812.56-647,297.92

Finding the Fourth Proportional to 1,191,172.42, 1,643,812.56 and 647,297.92

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Solution

The fourth proportional to 1,191,172.42, 1,643,812.56 and 647,297.92 is: 893,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,172.42 : 1,643,812.56 = 647,297.92 : x
  2. Step 2: Convert to fraction form
    1,191,172.42/1,643,812.56 = 647,297.92/x
  3. Step 3: Cross multiply
    1,191,172.42x = 1,643,812.56 × 647,297.92
  4. Step 4: Simplify right side
    1,191,172.42x = 1,064,036,450,957.88
  5. Step 5: Solve for x
    x = 1,064,036,450,957.88/1,191,172.42
  6. Step 6: Final answer
    x = 893,268.21

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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.