Home / 670,288.32-1,004,866.92-290,923.20

Finding the Fourth Proportional to 670,288.32, 1,004,866.92 and 290,923.20

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Solution

The fourth proportional to 670,288.32, 1,004,866.92 and 290,923.20 is: 436,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,288.32 : 1,004,866.92 = 290,923.20 : x
  2. Step 2: Convert to fraction form
    670,288.32/1,004,866.92 = 290,923.20/x
  3. Step 3: Cross multiply
    670,288.32x = 1,004,866.92 × 290,923.20
  4. Step 4: Simplify right side
    670,288.32x = 292,339,099,940.54
  5. Step 5: Solve for x
    x = 292,339,099,940.54/670,288.32
  6. Step 6: Final answer
    x = 436,139.33

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1.5x scale

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.