Home / 668,668.07-1,002,966.78-219,329.75

Finding the Fourth Proportional to 668,668.07, 1,002,966.78 and 219,329.75

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Solution

The fourth proportional to 668,668.07, 1,002,966.78 and 219,329.75 is: 328,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,668.07 : 1,002,966.78 = 219,329.75 : x
  2. Step 2: Convert to fraction form
    668,668.07/1,002,966.78 = 219,329.75/x
  3. Step 3: Cross multiply
    668,668.07x = 1,002,966.78 × 219,329.75
  4. Step 4: Simplify right side
    668,668.07x = 219,980,453,115.71
  5. Step 5: Solve for x
    x = 219,980,453,115.71/668,668.07
  6. Step 6: Final answer
    x = 328,983.04

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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.