Home / 763,543.81-1,143,571.56-364,465.54

Finding the Fourth Proportional to 763,543.81, 1,143,571.56 and 364,465.54

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Solution

The fourth proportional to 763,543.81, 1,143,571.56 and 364,465.54 is: 545,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,543.81 : 1,143,571.56 = 364,465.54 : x
  2. Step 2: Convert to fraction form
    763,543.81/1,143,571.56 = 364,465.54/x
  3. Step 3: Cross multiply
    763,543.81x = 1,143,571.56 × 364,465.54
  4. Step 4: Simplify right side
    763,543.81x = 416,792,426,144.04
  5. Step 5: Solve for x
    x = 416,792,426,144.04/763,543.81
  6. Step 6: Final answer
    x = 545,865.77

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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.