Home / 688,984.46-1,033,409.87-209,216.42

Finding the Fourth Proportional to 688,984.46, 1,033,409.87 and 209,216.42

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Solution

The fourth proportional to 688,984.46, 1,033,409.87 and 209,216.42 is: 313,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,984.46 : 1,033,409.87 = 209,216.42 : x
  2. Step 2: Convert to fraction form
    688,984.46/1,033,409.87 = 209,216.42/x
  3. Step 3: Cross multiply
    688,984.46x = 1,033,409.87 × 209,216.42
  4. Step 4: Simplify right side
    688,984.46x = 216,206,307,703.98
  5. Step 5: Solve for x
    x = 216,206,307,703.98/688,984.46
  6. Step 6: Final answer
    x = 313,804.33

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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.