Home / 1,667,362.24-2,498,420.64-1,289,206.72

Finding the Fourth Proportional to 1,667,362.24, 2,498,420.64 and 1,289,206.72

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Solution

The fourth proportional to 1,667,362.24, 2,498,420.64 and 1,289,206.72 is: 1,931,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,362.24 : 2,498,420.64 = 1,289,206.72 : x
  2. Step 2: Convert to fraction form
    1,667,362.24/2,498,420.64 = 1,289,206.72/x
  3. Step 3: Cross multiply
    1,667,362.24x = 2,498,420.64 × 1,289,206.72
  4. Step 4: Simplify right side
    1,667,362.24x = 3,220,980,678,474.70
  5. Step 5: Solve for x
    x = 3,220,980,678,474.70/1,667,362.24
  6. Step 6: Final answer
    x = 1,931,782.19

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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.