Home / 669,991.52-1,004,853.62-328,288.16

Finding the Fourth Proportional to 669,991.52, 1,004,853.62 and 328,288.16

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Solution

The fourth proportional to 669,991.52, 1,004,853.62 and 328,288.16 is: 492,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,991.52 : 1,004,853.62 = 328,288.16 : x
  2. Step 2: Convert to fraction form
    669,991.52/1,004,853.62 = 328,288.16/x
  3. Step 3: Cross multiply
    669,991.52x = 1,004,853.62 × 328,288.16
  4. Step 4: Simplify right side
    669,991.52x = 329,881,545,979.14
  5. Step 5: Solve for x
    x = 329,881,545,979.14/669,991.52
  6. Step 6: Final answer
    x = 492,366.75

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Double scale
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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.