Home / 1,174,962-1,621,457.46-638,418

Finding the Fourth Proportional to 1,174,962, 1,621,457.46 and 638,418

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Solution

The fourth proportional to 1,174,962, 1,621,457.46 and 638,418 is: 881,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,962 : 1,621,457.46 = 638,418 : x
  2. Step 2: Convert to fraction form
    1,174,962/1,621,457.46 = 638,418/x
  3. Step 3: Cross multiply
    1,174,962x = 1,621,457.46 × 638,418
  4. Step 4: Simplify right side
    1,174,962x = 1,035,167,628,698.28
  5. Step 5: Solve for x
    x = 1,035,167,628,698.28/1,174,962
  6. Step 6: Final answer
    x = 881,022.22

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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.