Home / 1,137,254.40-1,705,062.40-638,771.20

Finding the Fourth Proportional to 1,137,254.40, 1,705,062.40 and 638,771.20

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Solution

The fourth proportional to 1,137,254.40, 1,705,062.40 and 638,771.20 is: 957,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,254.40 : 1,705,062.40 = 638,771.20 : x
  2. Step 2: Convert to fraction form
    1,137,254.40/1,705,062.40 = 638,771.20/x
  3. Step 3: Cross multiply
    1,137,254.40x = 1,705,062.40 × 638,771.20
  4. Step 4: Simplify right side
    1,137,254.40x = 1,089,144,755,322.88
  5. Step 5: Solve for x
    x = 1,089,144,755,322.88/1,137,254.40
  6. Step 6: Final answer
    x = 957,696.67

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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.