Home / 1,438,080.21-1,984,484.21-825,802.22

Finding the Fourth Proportional to 1,438,080.21, 1,984,484.21 and 825,802.22

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Solution

The fourth proportional to 1,438,080.21, 1,984,484.21 and 825,802.22 is: 1,139,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,080.21 : 1,984,484.21 = 825,802.22 : x
  2. Step 2: Convert to fraction form
    1,438,080.21/1,984,484.21 = 825,802.22/x
  3. Step 3: Cross multiply
    1,438,080.21x = 1,984,484.21 × 825,802.22
  4. Step 4: Simplify right side
    1,438,080.21x = 1,638,791,467,005.15
  5. Step 5: Solve for x
    x = 1,638,791,467,005.15/1,438,080.21
  6. Step 6: Final answer
    x = 1,139,568.89

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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.