Home / 746,984.50-1,030,875.06-420,399.52

Finding the Fourth Proportional to 746,984.50, 1,030,875.06 and 420,399.52

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Solution

The fourth proportional to 746,984.50, 1,030,875.06 and 420,399.52 is: 580,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,984.50 : 1,030,875.06 = 420,399.52 : x
  2. Step 2: Convert to fraction form
    746,984.50/1,030,875.06 = 420,399.52/x
  3. Step 3: Cross multiply
    746,984.50x = 1,030,875.06 × 420,399.52
  4. Step 4: Simplify right side
    746,984.50x = 433,379,380,403.97
  5. Step 5: Solve for x
    x = 433,379,380,403.97/746,984.50
  6. Step 6: Final answer
    x = 580,171.85

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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.