Home / 689,315.80-1,033,974.06-216,038.02

Finding the Fourth Proportional to 689,315.80, 1,033,974.06 and 216,038.02

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Solution

The fourth proportional to 689,315.80, 1,033,974.06 and 216,038.02 is: 324,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,315.80 : 1,033,974.06 = 216,038.02 : x
  2. Step 2: Convert to fraction form
    689,315.80/1,033,974.06 = 216,038.02/x
  3. Step 3: Cross multiply
    689,315.80x = 1,033,974.06 × 216,038.02
  4. Step 4: Simplify right side
    689,315.80x = 223,377,708,653.76
  5. Step 5: Solve for x
    x = 223,377,708,653.76/689,315.80
  6. Step 6: Final answer
    x = 324,057.14

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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.