Home / 1,421,749.80-2,132,624.70-475,120.51

Finding the Fourth Proportional to 1,421,749.80, 2,132,624.70 and 475,120.51

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Solution

The fourth proportional to 1,421,749.80, 2,132,624.70 and 475,120.51 is: 712,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,749.80 : 2,132,624.70 = 475,120.51 : x
  2. Step 2: Convert to fraction form
    1,421,749.80/2,132,624.70 = 475,120.51/x
  3. Step 3: Cross multiply
    1,421,749.80x = 2,132,624.70 × 475,120.51
  4. Step 4: Simplify right side
    1,421,749.80x = 1,013,253,729,771.04
  5. Step 5: Solve for x
    x = 1,013,253,729,771.04/1,421,749.80
  6. Step 6: Final answer
    x = 712,680.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.