Home / 370,085.05-554,286.78-289,621.56

Finding the Fourth Proportional to 370,085.05, 554,286.78 and 289,621.56

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Solution

The fourth proportional to 370,085.05, 554,286.78 and 289,621.56 is: 433,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,085.05 : 554,286.78 = 289,621.56 : x
  2. Step 2: Convert to fraction form
    370,085.05/554,286.78 = 289,621.56/x
  3. Step 3: Cross multiply
    370,085.05x = 554,286.78 × 289,621.56
  4. Step 4: Simplify right side
    370,085.05x = 160,533,401,910.98
  5. Step 5: Solve for x
    x = 160,533,401,910.98/370,085.05
  6. Step 6: Final answer
    x = 433,774.35

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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.