Home / 690,709.03-1,036,203.67-217,284.28

Finding the Fourth Proportional to 690,709.03, 1,036,203.67 and 217,284.28

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Solution

The fourth proportional to 690,709.03, 1,036,203.67 and 217,284.28 is: 325,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,709.03 : 1,036,203.67 = 217,284.28 : x
  2. Step 2: Convert to fraction form
    690,709.03/1,036,203.67 = 217,284.28/x
  3. Step 3: Cross multiply
    690,709.03x = 1,036,203.67 × 217,284.28
  4. Step 4: Simplify right side
    690,709.03x = 225,150,768,369.31
  5. Step 5: Solve for x
    x = 225,150,768,369.31/690,709.03
  6. Step 6: Final answer
    x = 325,970.50

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Double scale
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Similar ratio
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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.