Home / 1,916,981.45-2,645,441.84-1,045,835.72

Finding the Fourth Proportional to 1,916,981.45, 2,645,441.84 and 1,045,835.72

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Solution

The fourth proportional to 1,916,981.45, 2,645,441.84 and 1,045,835.72 is: 1,443,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,981.45 : 2,645,441.84 = 1,045,835.72 : x
  2. Step 2: Convert to fraction form
    1,916,981.45/2,645,441.84 = 1,045,835.72/x
  3. Step 3: Cross multiply
    1,916,981.45x = 2,645,441.84 × 1,045,835.72
  4. Step 4: Simplify right side
    1,916,981.45x = 2,766,697,552,998.14
  5. Step 5: Solve for x
    x = 2,766,697,552,998.14/1,916,981.45
  6. Step 6: Final answer
    x = 1,443,257.35

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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.