Home / 1,405,063.81-1,939,035-861,094.52

Finding the Fourth Proportional to 1,405,063.81, 1,939,035 and 861,094.52

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Solution

The fourth proportional to 1,405,063.81, 1,939,035 and 861,094.52 is: 1,188,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,063.81 : 1,939,035 = 861,094.52 : x
  2. Step 2: Convert to fraction form
    1,405,063.81/1,939,035 = 861,094.52/x
  3. Step 3: Cross multiply
    1,405,063.81x = 1,939,035 × 861,094.52
  4. Step 4: Simplify right side
    1,405,063.81x = 1,669,692,412,588.20
  5. Step 5: Solve for x
    x = 1,669,692,412,588.20/1,405,063.81
  6. Step 6: Final answer
    x = 1,188,339.21

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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.