Home / 1,489,365.48-2,234,072.84-720,416.28

Finding the Fourth Proportional to 1,489,365.48, 2,234,072.84 and 720,416.28

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Solution

The fourth proportional to 1,489,365.48, 2,234,072.84 and 720,416.28 is: 1,080,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,365.48 : 2,234,072.84 = 720,416.28 : x
  2. Step 2: Convert to fraction form
    1,489,365.48/2,234,072.84 = 720,416.28/x
  3. Step 3: Cross multiply
    1,489,365.48x = 2,234,072.84 × 720,416.28
  4. Step 4: Simplify right side
    1,489,365.48x = 1,609,462,444,641.84
  5. Step 5: Solve for x
    x = 1,609,462,444,641.84/1,489,365.48
  6. Step 6: Final answer
    x = 1,080,636.33

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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.