Home / 1,818,684.86-2,509,845.67-991,803.65

Finding the Fourth Proportional to 1,818,684.86, 2,509,845.67 and 991,803.65

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Solution

The fourth proportional to 1,818,684.86, 2,509,845.67 and 991,803.65 is: 1,368,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,684.86 : 2,509,845.67 = 991,803.65 : x
  2. Step 2: Convert to fraction form
    1,818,684.86/2,509,845.67 = 991,803.65/x
  3. Step 3: Cross multiply
    1,818,684.86x = 2,509,845.67 × 991,803.65
  4. Step 4: Simplify right side
    1,818,684.86x = 2,489,274,094,981.61
  5. Step 5: Solve for x
    x = 2,489,274,094,981.61/1,818,684.86
  6. Step 6: Final answer
    x = 1,368,722.07

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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.