Home / 786,047.99-1,179,321.21-280,598.14

Finding the Fourth Proportional to 786,047.99, 1,179,321.21 and 280,598.14

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Solution

The fourth proportional to 786,047.99, 1,179,321.21 and 280,598.14 is: 420,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,047.99 : 1,179,321.21 = 280,598.14 : x
  2. Step 2: Convert to fraction form
    786,047.99/1,179,321.21 = 280,598.14/x
  3. Step 3: Cross multiply
    786,047.99x = 1,179,321.21 × 280,598.14
  4. Step 4: Simplify right side
    786,047.99x = 330,915,337,988.55
  5. Step 5: Solve for x
    x = 330,915,337,988.55/786,047.99
  6. Step 6: Final answer
    x = 420,986.18

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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.