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Finding the Fourth Proportional to 990,595, 1,367,021.10 and 537,886

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Solution

The fourth proportional to 990,595, 1,367,021.10 and 537,886 is: 742,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,595 : 1,367,021.10 = 537,886 : x
  2. Step 2: Convert to fraction form
    990,595/1,367,021.10 = 537,886/x
  3. Step 3: Cross multiply
    990,595x = 1,367,021.10 × 537,886
  4. Step 4: Simplify right side
    990,595x = 735,301,511,394.60
  5. Step 5: Solve for x
    x = 735,301,511,394.60/990,595
  6. Step 6: Final answer
    x = 742,282.68

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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.