Home / 1,979,628.40-2,967,474.30-912,809.80

Finding the Fourth Proportional to 1,979,628.40, 2,967,474.30 and 912,809.80

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Solution

The fourth proportional to 1,979,628.40, 2,967,474.30 and 912,809.80 is: 1,368,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,628.40 : 2,967,474.30 = 912,809.80 : x
  2. Step 2: Convert to fraction form
    1,979,628.40/2,967,474.30 = 912,809.80/x
  3. Step 3: Cross multiply
    1,979,628.40x = 2,967,474.30 × 912,809.80
  4. Step 4: Simplify right side
    1,979,628.40x = 2,708,739,622,288.14
  5. Step 5: Solve for x
    x = 2,708,739,622,288.14/1,979,628.40
  6. Step 6: Final answer
    x = 1,368,307.11

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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.