Home / 1,556,175-2,147,521.50-840,783

Finding the Fourth Proportional to 1,556,175, 2,147,521.50 and 840,783

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Solution

The fourth proportional to 1,556,175, 2,147,521.50 and 840,783 is: 1,160,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,175 : 2,147,521.50 = 840,783 : x
  2. Step 2: Convert to fraction form
    1,556,175/2,147,521.50 = 840,783/x
  3. Step 3: Cross multiply
    1,556,175x = 2,147,521.50 × 840,783
  4. Step 4: Simplify right side
    1,556,175x = 1,805,599,569,334.50
  5. Step 5: Solve for x
    x = 1,805,599,569,334.50/1,556,175
  6. Step 6: Final answer
    x = 1,160,280.54

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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.