Home / 1,913,312-2,640,179-1,178,148.44

Finding the Fourth Proportional to 1,913,312, 2,640,179 and 1,178,148.44

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Solution

The fourth proportional to 1,913,312, 2,640,179 and 1,178,148.44 is: 1,625,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,312 : 2,640,179 = 1,178,148.44 : x
  2. Step 2: Convert to fraction form
    1,913,312/2,640,179 = 1,178,148.44/x
  3. Step 3: Cross multiply
    1,913,312x = 2,640,179 × 1,178,148.44
  4. Step 4: Simplify right side
    1,913,312x = 3,110,522,770,170.76
  5. Step 5: Solve for x
    x = 3,110,522,770,170.76/1,913,312
  6. Step 6: Final answer
    x = 1,625,726.89

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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.