Home / 1,375,618.48-1,898,412.80-763,771.31

Finding the Fourth Proportional to 1,375,618.48, 1,898,412.80 and 763,771.31

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Solution

The fourth proportional to 1,375,618.48, 1,898,412.80 and 763,771.31 is: 1,054,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,618.48 : 1,898,412.80 = 763,771.31 : x
  2. Step 2: Convert to fraction form
    1,375,618.48/1,898,412.80 = 763,771.31/x
  3. Step 3: Cross multiply
    1,375,618.48x = 1,898,412.80 × 763,771.31
  4. Step 4: Simplify right side
    1,375,618.48x = 1,449,953,224,984.90
  5. Step 5: Solve for x
    x = 1,449,953,224,984.90/1,375,618.48
  6. Step 6: Final answer
    x = 1,054,037.33

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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.