Home / 1,178,940-1,623,206.88-1,071,187.68

Finding the Fourth Proportional to 1,178,940, 1,623,206.88 and 1,071,187.68

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Solution

The fourth proportional to 1,178,940, 1,623,206.88 and 1,071,187.68 is: 1,474,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,940 : 1,623,206.88 = 1,071,187.68 : x
  2. Step 2: Convert to fraction form
    1,178,940/1,623,206.88 = 1,071,187.68/x
  3. Step 3: Cross multiply
    1,178,940x = 1,623,206.88 × 1,071,187.68
  4. Step 4: Simplify right side
    1,178,940x = 1,738,759,211,947.24
  5. Step 5: Solve for x
    x = 1,738,759,211,947.24/1,178,940
  6. Step 6: Final answer
    x = 1,474,849.62

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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.