Home / 380,406.08-524,401.44-289,604

Finding the Fourth Proportional to 380,406.08, 524,401.44 and 289,604

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Solution

The fourth proportional to 380,406.08, 524,401.44 and 289,604 is: 399,227.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,406.08 : 524,401.44 = 289,604 : x
  2. Step 2: Convert to fraction form
    380,406.08/524,401.44 = 289,604/x
  3. Step 3: Cross multiply
    380,406.08x = 524,401.44 × 289,604
  4. Step 4: Simplify right side
    380,406.08x = 151,868,754,629.76
  5. Step 5: Solve for x
    x = 151,868,754,629.76/380,406.08
  6. Step 6: Final answer
    x = 399,227.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.