Home / 777,255.90-1,072,615.31-450,632.38

Finding the Fourth Proportional to 777,255.90, 1,072,615.31 and 450,632.38

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Solution

The fourth proportional to 777,255.90, 1,072,615.31 and 450,632.38 is: 621,873.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,255.90 : 1,072,615.31 = 450,632.38 : x
  2. Step 2: Convert to fraction form
    777,255.90/1,072,615.31 = 450,632.38/x
  3. Step 3: Cross multiply
    777,255.90x = 1,072,615.31 × 450,632.38
  4. Step 4: Simplify right side
    777,255.90x = 483,355,189,969.74
  5. Step 5: Solve for x
    x = 483,355,189,969.74/777,255.90
  6. Step 6: Final answer
    x = 621,873.94

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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.