Home / 726,464.16-1,089,941.47-321,600.53

Finding the Fourth Proportional to 726,464.16, 1,089,941.47 and 321,600.53

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Solution

The fourth proportional to 726,464.16, 1,089,941.47 and 321,600.53 is: 482,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,464.16 : 1,089,941.47 = 321,600.53 : x
  2. Step 2: Convert to fraction form
    726,464.16/1,089,941.47 = 321,600.53/x
  3. Step 3: Cross multiply
    726,464.16x = 1,089,941.47 × 321,600.53
  4. Step 4: Simplify right side
    726,464.16x = 350,525,756,341.83
  5. Step 5: Solve for x
    x = 350,525,756,341.83/726,464.16
  6. Step 6: Final answer
    x = 482,509.36

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1.5x scale

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.