Home / 1,047,097.80-1,445,131.26-639,114.84

Finding the Fourth Proportional to 1,047,097.80, 1,445,131.26 and 639,114.84

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Solution

The fourth proportional to 1,047,097.80, 1,445,131.26 and 639,114.84 is: 882,061.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,097.80 : 1,445,131.26 = 639,114.84 : x
  2. Step 2: Convert to fraction form
    1,047,097.80/1,445,131.26 = 639,114.84/x
  3. Step 3: Cross multiply
    1,047,097.80x = 1,445,131.26 × 639,114.84
  4. Step 4: Simplify right side
    1,047,097.80x = 923,604,834,013.90
  5. Step 5: Solve for x
    x = 923,604,834,013.90/1,047,097.80
  6. Step 6: Final answer
    x = 882,061.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.