Home / 380,047.93-523,826.96-288,136.77

Finding the Fourth Proportional to 380,047.93, 523,826.96 and 288,136.77

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Solution

The fourth proportional to 380,047.93, 523,826.96 and 288,136.77 is: 397,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,047.93 : 523,826.96 = 288,136.77 : x
  2. Step 2: Convert to fraction form
    380,047.93/523,826.96 = 288,136.77/x
  3. Step 3: Cross multiply
    380,047.93x = 523,826.96 × 288,136.77
  4. Step 4: Simplify right side
    380,047.93x = 150,933,809,308.07
  5. Step 5: Solve for x
    x = 150,933,809,308.07/380,047.93
  6. Step 6: Final answer
    x = 397,144.15

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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.