Home / 1,018,722.48-1,405,845.36-636,970.56

Finding the Fourth Proportional to 1,018,722.48, 1,405,845.36 and 636,970.56

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Solution

The fourth proportional to 1,018,722.48, 1,405,845.36 and 636,970.56 is: 879,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,722.48 : 1,405,845.36 = 636,970.56 : x
  2. Step 2: Convert to fraction form
    1,018,722.48/1,405,845.36 = 636,970.56/x
  3. Step 3: Cross multiply
    1,018,722.48x = 1,405,845.36 × 636,970.56
  4. Step 4: Simplify right side
    1,018,722.48x = 895,482,106,232.60
  5. Step 5: Solve for x
    x = 895,482,106,232.60/1,018,722.48
  6. Step 6: Final answer
    x = 879,024.59

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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.