Home / 1,378,535.04-1,902,378.24-774,923.04

Finding the Fourth Proportional to 1,378,535.04, 1,902,378.24 and 774,923.04

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Solution

The fourth proportional to 1,378,535.04, 1,902,378.24 and 774,923.04 is: 1,069,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,535.04 : 1,902,378.24 = 774,923.04 : x
  2. Step 2: Convert to fraction form
    1,378,535.04/1,902,378.24 = 774,923.04/x
  3. Step 3: Cross multiply
    1,378,535.04x = 1,902,378.24 × 774,923.04
  4. Step 4: Simplify right side
    1,378,535.04x = 1,474,196,728,970.65
  5. Step 5: Solve for x
    x = 1,474,196,728,970.65/1,378,535.04
  6. Step 6: Final answer
    x = 1,069,393.73

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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.