Home / 1,148,954.90-1,585,317.42-665,491.21

Finding the Fourth Proportional to 1,148,954.90, 1,585,317.42 and 665,491.21

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Solution

The fourth proportional to 1,148,954.90, 1,585,317.42 and 665,491.21 is: 918,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,954.90 : 1,585,317.42 = 665,491.21 : x
  2. Step 2: Convert to fraction form
    1,148,954.90/1,585,317.42 = 665,491.21/x
  3. Step 3: Cross multiply
    1,148,954.90x = 1,585,317.42 × 665,491.21
  4. Step 4: Simplify right side
    1,148,954.90x = 1,055,014,804,106.58
  5. Step 5: Solve for x
    x = 1,055,014,804,106.58/1,148,954.90
  6. Step 6: Final answer
    x = 918,238.66

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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.