Home / 670,911.43-1,006,163.01-191,178.40

Finding the Fourth Proportional to 670,911.43, 1,006,163.01 and 191,178.40

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Solution

The fourth proportional to 670,911.43, 1,006,163.01 and 191,178.40 is: 286,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,911.43 : 1,006,163.01 = 191,178.40 : x
  2. Step 2: Convert to fraction form
    670,911.43/1,006,163.01 = 191,178.40/x
  3. Step 3: Cross multiply
    670,911.43x = 1,006,163.01 × 191,178.40
  4. Step 4: Simplify right side
    670,911.43x = 192,356,634,390.98
  5. Step 5: Solve for x
    x = 192,356,634,390.98/670,911.43
  6. Step 6: Final answer
    x = 286,709.43

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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.