Home / 763,990.60-1,144,673.70-363,769.60

Finding the Fourth Proportional to 763,990.60, 1,144,673.70 and 363,769.60

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Solution

The fourth proportional to 763,990.60, 1,144,673.70 and 363,769.60 is: 545,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,990.60 : 1,144,673.70 = 363,769.60 : x
  2. Step 2: Convert to fraction form
    763,990.60/1,144,673.70 = 363,769.60/x
  3. Step 3: Cross multiply
    763,990.60x = 1,144,673.70 × 363,769.60
  4. Step 4: Simplify right side
    763,990.60x = 416,397,493,979.52
  5. Step 5: Solve for x
    x = 416,397,493,979.52/763,990.60
  6. Step 6: Final answer
    x = 545,029.60

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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.