Home / 979,638.56-1,351,900.56-549,919.52

Finding the Fourth Proportional to 979,638.56, 1,351,900.56 and 549,919.52

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Solution

The fourth proportional to 979,638.56, 1,351,900.56 and 549,919.52 is: 758,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,638.56 : 1,351,900.56 = 549,919.52 : x
  2. Step 2: Convert to fraction form
    979,638.56/1,351,900.56 = 549,919.52/x
  3. Step 3: Cross multiply
    979,638.56x = 1,351,900.56 × 549,919.52
  4. Step 4: Simplify right side
    979,638.56x = 743,436,507,042.93
  5. Step 5: Solve for x
    x = 743,436,507,042.93/979,638.56
  6. Step 6: Final answer
    x = 758,888.57

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1.5x scale

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.