Home / 988,628.20-1,482,942.30-483,431.20

Finding the Fourth Proportional to 988,628.20, 1,482,942.30 and 483,431.20

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Solution

The fourth proportional to 988,628.20, 1,482,942.30 and 483,431.20 is: 725,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,628.20 : 1,482,942.30 = 483,431.20 : x
  2. Step 2: Convert to fraction form
    988,628.20/1,482,942.30 = 483,431.20/x
  3. Step 3: Cross multiply
    988,628.20x = 1,482,942.30 × 483,431.20
  4. Step 4: Simplify right side
    988,628.20x = 716,900,575,619.76
  5. Step 5: Solve for x
    x = 716,900,575,619.76/988,628.20
  6. Step 6: Final answer
    x = 725,146.80

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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.