Home / 859,601.72-1,289,412.30-260,558.12

Finding the Fourth Proportional to 859,601.72, 1,289,412.30 and 260,558.12

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Solution

The fourth proportional to 859,601.72, 1,289,412.30 and 260,558.12 is: 390,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,601.72 : 1,289,412.30 = 260,558.12 : x
  2. Step 2: Convert to fraction form
    859,601.72/1,289,412.30 = 260,558.12/x
  3. Step 3: Cross multiply
    859,601.72x = 1,289,412.30 × 260,558.12
  4. Step 4: Simplify right side
    859,601.72x = 335,966,844,792.88
  5. Step 5: Solve for x
    x = 335,966,844,792.88/859,601.72
  6. Step 6: Final answer
    x = 390,840.13

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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.