Home / 1,257,338.14-1,886,288.42-458,619.69

Finding the Fourth Proportional to 1,257,338.14, 1,886,288.42 and 458,619.69

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Solution

The fourth proportional to 1,257,338.14, 1,886,288.42 and 458,619.69 is: 688,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,338.14 : 1,886,288.42 = 458,619.69 : x
  2. Step 2: Convert to fraction form
    1,257,338.14/1,886,288.42 = 458,619.69/x
  3. Step 3: Cross multiply
    1,257,338.14x = 1,886,288.42 × 458,619.69
  4. Step 4: Simplify right side
    1,257,338.14x = 865,089,004,503.96
  5. Step 5: Solve for x
    x = 865,089,004,503.96/1,257,338.14
  6. Step 6: Final answer
    x = 688,032.10

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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.