Home / 990,918.36-1,367,459.82-538,212.60

Finding the Fourth Proportional to 990,918.36, 1,367,459.82 and 538,212.60

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Solution

The fourth proportional to 990,918.36, 1,367,459.82 and 538,212.60 is: 742,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,918.36 : 1,367,459.82 = 538,212.60 : x
  2. Step 2: Convert to fraction form
    990,918.36/1,367,459.82 = 538,212.60/x
  3. Step 3: Cross multiply
    990,918.36x = 1,367,459.82 × 538,212.60
  4. Step 4: Simplify right side
    990,918.36x = 735,984,105,117.73
  5. Step 5: Solve for x
    x = 735,984,105,117.73/990,918.36
  6. Step 6: Final answer
    x = 742,729.31

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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.