Home / 979,757.40-1,351,971.90-549,939

Finding the Fourth Proportional to 979,757.40, 1,351,971.90 and 549,939

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Solution

The fourth proportional to 979,757.40, 1,351,971.90 and 549,939 is: 758,863.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,757.40 : 1,351,971.90 = 549,939 : x
  2. Step 2: Convert to fraction form
    979,757.40/1,351,971.90 = 549,939/x
  3. Step 3: Cross multiply
    979,757.40x = 1,351,971.90 × 549,939
  4. Step 4: Simplify right side
    979,757.40x = 743,502,074,714.10
  5. Step 5: Solve for x
    x = 743,502,074,714.10/979,757.40
  6. Step 6: Final answer
    x = 758,863.44

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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.