Home / 1,018,852.80-1,405,580.76-636,215.28

Finding the Fourth Proportional to 1,018,852.80, 1,405,580.76 and 636,215.28

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Solution

The fourth proportional to 1,018,852.80, 1,405,580.76 and 636,215.28 is: 877,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,852.80 : 1,405,580.76 = 636,215.28 : x
  2. Step 2: Convert to fraction form
    1,018,852.80/1,405,580.76 = 636,215.28/x
  3. Step 3: Cross multiply
    1,018,852.80x = 1,405,580.76 × 636,215.28
  4. Step 4: Simplify right side
    1,018,852.80x = 894,251,956,786.01
  5. Step 5: Solve for x
    x = 894,251,956,786.01/1,018,852.80
  6. Step 6: Final answer
    x = 877,704.76

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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.