Home / 1,179,983.04-1,628,373.60-643,439.04

Finding the Fourth Proportional to 1,179,983.04, 1,628,373.60 and 643,439.04

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Solution

The fourth proportional to 1,179,983.04, 1,628,373.60 and 643,439.04 is: 887,944.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,983.04 : 1,628,373.60 = 643,439.04 : x
  2. Step 2: Convert to fraction form
    1,179,983.04/1,628,373.60 = 643,439.04/x
  3. Step 3: Cross multiply
    1,179,983.04x = 1,628,373.60 × 643,439.04
  4. Step 4: Simplify right side
    1,179,983.04x = 1,047,759,145,945.34
  5. Step 5: Solve for x
    x = 1,047,759,145,945.34/1,179,983.04
  6. Step 6: Final answer
    x = 887,944.24

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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.