Home / 859,487.58-1,289,371.14-260,308.36

Finding the Fourth Proportional to 859,487.58, 1,289,371.14 and 260,308.36

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Solution

The fourth proportional to 859,487.58, 1,289,371.14 and 260,308.36 is: 390,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,487.58 : 1,289,371.14 = 260,308.36 : x
  2. Step 2: Convert to fraction form
    859,487.58/1,289,371.14 = 260,308.36/x
  3. Step 3: Cross multiply
    859,487.58x = 1,289,371.14 × 260,308.36
  4. Step 4: Simplify right side
    859,487.58x = 335,634,084,137.97
  5. Step 5: Solve for x
    x = 335,634,084,137.97/859,487.58
  6. Step 6: Final answer
    x = 390,504.87

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1.5x scale

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.