Home / 1,421,758.05-1,962,025.58-777,180.71

Finding the Fourth Proportional to 1,421,758.05, 1,962,025.58 and 777,180.71

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Solution

The fourth proportional to 1,421,758.05, 1,962,025.58 and 777,180.71 is: 1,072,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,758.05 : 1,962,025.58 = 777,180.71 : x
  2. Step 2: Convert to fraction form
    1,421,758.05/1,962,025.58 = 777,180.71/x
  3. Step 3: Cross multiply
    1,421,758.05x = 1,962,025.58 × 777,180.71
  4. Step 4: Simplify right side
    1,421,758.05x = 1,524,848,423,492.43
  5. Step 5: Solve for x
    x = 1,524,848,423,492.43/1,421,758.05
  6. Step 6: Final answer
    x = 1,072,509.08

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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.