Home / 777,251.72-1,072,609.60-450,628.21

Finding the Fourth Proportional to 777,251.72, 1,072,609.60 and 450,628.21

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Solution

The fourth proportional to 777,251.72, 1,072,609.60 and 450,628.21 is: 621,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,251.72 : 1,072,609.60 = 450,628.21 : x
  2. Step 2: Convert to fraction form
    777,251.72/1,072,609.60 = 450,628.21/x
  3. Step 3: Cross multiply
    777,251.72x = 1,072,609.60 × 450,628.21
  4. Step 4: Simplify right side
    777,251.72x = 483,348,144,076.82
  5. Step 5: Solve for x
    x = 483,348,144,076.82/777,251.72
  6. Step 6: Final answer
    x = 621,868.22

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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.