Home / 1,291,968-1,937,969.28-405,504

Finding the Fourth Proportional to 1,291,968, 1,937,969.28 and 405,504

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Solution

The fourth proportional to 1,291,968, 1,937,969.28 and 405,504 is: 608,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,968 : 1,937,969.28 = 405,504 : x
  2. Step 2: Convert to fraction form
    1,291,968/1,937,969.28 = 405,504/x
  3. Step 3: Cross multiply
    1,291,968x = 1,937,969.28 × 405,504
  4. Step 4: Simplify right side
    1,291,968x = 785,854,294,917.12
  5. Step 5: Solve for x
    x = 785,854,294,917.12/1,291,968
  6. Step 6: Final answer
    x = 608,261.42

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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.