Home / 689,401.80-1,034,199.90-216,037.80

Finding the Fourth Proportional to 689,401.80, 1,034,199.90 and 216,037.80

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Solution

The fourth proportional to 689,401.80, 1,034,199.90 and 216,037.80 is: 324,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,401.80 : 1,034,199.90 = 216,037.80 : x
  2. Step 2: Convert to fraction form
    689,401.80/1,034,199.90 = 216,037.80/x
  3. Step 3: Cross multiply
    689,401.80x = 1,034,199.90 × 216,037.80
  4. Step 4: Simplify right side
    689,401.80x = 223,426,271,156.22
  5. Step 5: Solve for x
    x = 223,426,271,156.22/689,401.80
  6. Step 6: Final answer
    x = 324,087.16

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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.