Home / 1,397,180-1,928,108.40-761,276

Finding the Fourth Proportional to 1,397,180, 1,928,108.40 and 761,276

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Solution

The fourth proportional to 1,397,180, 1,928,108.40 and 761,276 is: 1,050,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,180 : 1,928,108.40 = 761,276 : x
  2. Step 2: Convert to fraction form
    1,397,180/1,928,108.40 = 761,276/x
  3. Step 3: Cross multiply
    1,397,180x = 1,928,108.40 × 761,276
  4. Step 4: Simplify right side
    1,397,180x = 1,467,822,650,318.40
  5. Step 5: Solve for x
    x = 1,467,822,650,318.40/1,397,180
  6. Step 6: Final answer
    x = 1,050,560.88

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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.