Home / 689,368.80-1,034,150.40-216,004.80

Finding the Fourth Proportional to 689,368.80, 1,034,150.40 and 216,004.80

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Solution

The fourth proportional to 689,368.80, 1,034,150.40 and 216,004.80 is: 324,037.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,368.80 : 1,034,150.40 = 216,004.80 : x
  2. Step 2: Convert to fraction form
    689,368.80/1,034,150.40 = 216,004.80/x
  3. Step 3: Cross multiply
    689,368.80x = 1,034,150.40 × 216,004.80
  4. Step 4: Simplify right side
    689,368.80x = 223,381,450,321.92
  5. Step 5: Solve for x
    x = 223,381,450,321.92/689,368.80
  6. Step 6: Final answer
    x = 324,037.66

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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.