Home / 690,641.64-1,035,863.91-217,314.63

Finding the Fourth Proportional to 690,641.64, 1,035,863.91 and 217,314.63

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Solution

The fourth proportional to 690,641.64, 1,035,863.91 and 217,314.63 is: 325,940.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,641.64 : 1,035,863.91 = 217,314.63 : x
  2. Step 2: Convert to fraction form
    690,641.64/1,035,863.91 = 217,314.63/x
  3. Step 3: Cross multiply
    690,641.64x = 1,035,863.91 × 217,314.63
  4. Step 4: Simplify right side
    690,641.64x = 225,108,382,332.00
  5. Step 5: Solve for x
    x = 225,108,382,332.00/690,641.64
  6. Step 6: Final answer
    x = 325,940.94

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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.