Home / 859,347.37-1,289,086.68-260,358.16

Finding the Fourth Proportional to 859,347.37, 1,289,086.68 and 260,358.16

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Solution

The fourth proportional to 859,347.37, 1,289,086.68 and 260,358.16 is: 390,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,347.37 : 1,289,086.68 = 260,358.16 : x
  2. Step 2: Convert to fraction form
    859,347.37/1,289,086.68 = 260,358.16/x
  3. Step 3: Cross multiply
    859,347.37x = 1,289,086.68 × 260,358.16
  4. Step 4: Simplify right side
    859,347.37x = 335,624,236,085.31
  5. Step 5: Solve for x
    x = 335,624,236,085.31/859,347.37
  6. Step 6: Final answer
    x = 390,557.12

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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.