Home / 1,419,837.60-2,130,339.60-521,709.60

Finding the Fourth Proportional to 1,419,837.60, 2,130,339.60 and 521,709.60

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Solution

The fourth proportional to 1,419,837.60, 2,130,339.60 and 521,709.60 is: 782,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,837.60 : 2,130,339.60 = 521,709.60 : x
  2. Step 2: Convert to fraction form
    1,419,837.60/2,130,339.60 = 521,709.60/x
  3. Step 3: Cross multiply
    1,419,837.60x = 2,130,339.60 × 521,709.60
  4. Step 4: Simplify right side
    1,419,837.60x = 1,111,418,620,580.16
  5. Step 5: Solve for x
    x = 1,111,418,620,580.16/1,419,837.60
  6. Step 6: Final answer
    x = 782,778.69

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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.