Home / 688,004.80-1,032,007.20-214,628.65

Finding the Fourth Proportional to 688,004.80, 1,032,007.20 and 214,628.65

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Solution

The fourth proportional to 688,004.80, 1,032,007.20 and 214,628.65 is: 321,942.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,004.80 : 1,032,007.20 = 214,628.65 : x
  2. Step 2: Convert to fraction form
    688,004.80/1,032,007.20 = 214,628.65/x
  3. Step 3: Cross multiply
    688,004.80x = 1,032,007.20 × 214,628.65
  4. Step 4: Simplify right side
    688,004.80x = 221,498,312,126.28
  5. Step 5: Solve for x
    x = 221,498,312,126.28/688,004.80
  6. Step 6: Final answer
    x = 321,942.98

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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.