Home / 1,422,279.48-1,963,239.90-818,907.96

Finding the Fourth Proportional to 1,422,279.48, 1,963,239.90 and 818,907.96

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Solution

The fourth proportional to 1,422,279.48, 1,963,239.90 and 818,907.96 is: 1,130,377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,279.48 : 1,963,239.90 = 818,907.96 : x
  2. Step 2: Convert to fraction form
    1,422,279.48/1,963,239.90 = 818,907.96/x
  3. Step 3: Cross multiply
    1,422,279.48x = 1,963,239.90 × 818,907.96
  4. Step 4: Simplify right side
    1,422,279.48x = 1,607,712,781,499.60
  5. Step 5: Solve for x
    x = 1,607,712,781,499.60/1,422,279.48
  6. Step 6: Final answer
    x = 1,130,377.54

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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.