Home / 690,626.64-1,035,841.55-217,299.70

Finding the Fourth Proportional to 690,626.64, 1,035,841.55 and 217,299.70

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Solution

The fourth proportional to 690,626.64, 1,035,841.55 and 217,299.70 is: 325,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,626.64 : 1,035,841.55 = 217,299.70 : x
  2. Step 2: Convert to fraction form
    690,626.64/1,035,841.55 = 217,299.70/x
  3. Step 3: Cross multiply
    690,626.64x = 1,035,841.55 × 217,299.70
  4. Step 4: Simplify right side
    690,626.64x = 225,088,054,386.43
  5. Step 5: Solve for x
    x = 225,088,054,386.43/690,626.64
  6. Step 6: Final answer
    x = 325,918.58

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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.