Home / 1,154,220.03-1,731,330.05-312,771.78

Finding the Fourth Proportional to 1,154,220.03, 1,731,330.05 and 312,771.78

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Solution

The fourth proportional to 1,154,220.03, 1,731,330.05 and 312,771.78 is: 469,157.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,220.03 : 1,731,330.05 = 312,771.78 : x
  2. Step 2: Convert to fraction form
    1,154,220.03/1,731,330.05 = 312,771.78/x
  3. Step 3: Cross multiply
    1,154,220.03x = 1,731,330.05 × 312,771.78
  4. Step 4: Simplify right side
    1,154,220.03x = 541,511,179,942.13
  5. Step 5: Solve for x
    x = 541,511,179,942.13/1,154,220.03
  6. Step 6: Final answer
    x = 469,157.67

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Double scale
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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.