Home / 442,945.07-611,051.60-289,915.89

Finding the Fourth Proportional to 442,945.07, 611,051.60 and 289,915.89

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Solution

The fourth proportional to 442,945.07, 611,051.60 and 289,915.89 is: 399,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,945.07 : 611,051.60 = 289,915.89 : x
  2. Step 2: Convert to fraction form
    442,945.07/611,051.60 = 289,915.89/x
  3. Step 3: Cross multiply
    442,945.07x = 611,051.60 × 289,915.89
  4. Step 4: Simplify right side
    442,945.07x = 177,153,568,449.92
  5. Step 5: Solve for x
    x = 177,153,568,449.92/442,945.07
  6. Step 6: Final answer
    x = 399,944.78

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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.