Home / 1,287,592.84-1,777,204.74-879,859.72

Finding the Fourth Proportional to 1,287,592.84, 1,777,204.74 and 879,859.72

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Solution

The fourth proportional to 1,287,592.84, 1,777,204.74 and 879,859.72 is: 1,214,429.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,592.84 : 1,777,204.74 = 879,859.72 : x
  2. Step 2: Convert to fraction form
    1,287,592.84/1,777,204.74 = 879,859.72/x
  3. Step 3: Cross multiply
    1,287,592.84x = 1,777,204.74 × 879,859.72
  4. Step 4: Simplify right side
    1,287,592.84x = 1,563,690,864,919.07
  5. Step 5: Solve for x
    x = 1,563,690,864,919.07/1,287,592.84
  6. Step 6: Final answer
    x = 1,214,429.61

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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.