Home / 998,749.75-1,378,279.53-546,040.75

Finding the Fourth Proportional to 998,749.75, 1,378,279.53 and 546,040.75

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Solution

The fourth proportional to 998,749.75, 1,378,279.53 and 546,040.75 is: 753,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,749.75 : 1,378,279.53 = 546,040.75 : x
  2. Step 2: Convert to fraction form
    998,749.75/1,378,279.53 = 546,040.75/x
  3. Step 3: Cross multiply
    998,749.75x = 1,378,279.53 × 546,040.75
  4. Step 4: Simplify right side
    998,749.75x = 752,596,788,270.85
  5. Step 5: Solve for x
    x = 752,596,788,270.85/998,749.75
  6. Step 6: Final answer
    x = 753,538.90

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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.