Home / 1,721,372.48-2,580,279.68-656,128.32

Finding the Fourth Proportional to 1,721,372.48, 2,580,279.68 and 656,128.32

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Solution

The fourth proportional to 1,721,372.48, 2,580,279.68 and 656,128.32 is: 983,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,372.48 : 2,580,279.68 = 656,128.32 : x
  2. Step 2: Convert to fraction form
    1,721,372.48/2,580,279.68 = 656,128.32/x
  3. Step 3: Cross multiply
    1,721,372.48x = 2,580,279.68 × 656,128.32
  4. Step 4: Simplify right side
    1,721,372.48x = 1,692,994,571,568.54
  5. Step 5: Solve for x
    x = 1,692,994,571,568.54/1,721,372.48
  6. Step 6: Final answer
    x = 983,514.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.