Home / 1,179,009.60-1,768,514.40-421,214.10

Finding the Fourth Proportional to 1,179,009.60, 1,768,514.40 and 421,214.10

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Solution

The fourth proportional to 1,179,009.60, 1,768,514.40 and 421,214.10 is: 631,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,009.60 : 1,768,514.40 = 421,214.10 : x
  2. Step 2: Convert to fraction form
    1,179,009.60/1,768,514.40 = 421,214.10/x
  3. Step 3: Cross multiply
    1,179,009.60x = 1,768,514.40 × 421,214.10
  4. Step 4: Simplify right side
    1,179,009.60x = 744,923,201,333.04
  5. Step 5: Solve for x
    x = 744,923,201,333.04/1,179,009.60
  6. Step 6: Final answer
    x = 631,821.15

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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.