Home / 1,207,826-1,666,820.94-663,984.71

Finding the Fourth Proportional to 1,207,826, 1,666,820.94 and 663,984.71

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Solution

The fourth proportional to 1,207,826, 1,666,820.94 and 663,984.71 is: 916,310.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,826 : 1,666,820.94 = 663,984.71 : x
  2. Step 2: Convert to fraction form
    1,207,826/1,666,820.94 = 663,984.71/x
  3. Step 3: Cross multiply
    1,207,826x = 1,666,820.94 × 663,984.71
  4. Step 4: Simplify right side
    1,207,826x = 1,106,743,618,467.83
  5. Step 5: Solve for x
    x = 1,106,743,618,467.83/1,207,826
  6. Step 6: Final answer
    x = 916,310.48

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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.