Home / 855,350.46-1,180,678.68-492,918.75

Finding the Fourth Proportional to 855,350.46, 1,180,678.68 and 492,918.75

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Solution

The fourth proportional to 855,350.46, 1,180,678.68 and 492,918.75 is: 680,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,350.46 : 1,180,678.68 = 492,918.75 : x
  2. Step 2: Convert to fraction form
    855,350.46/1,180,678.68 = 492,918.75/x
  3. Step 3: Cross multiply
    855,350.46x = 1,180,678.68 × 492,918.75
  4. Step 4: Simplify right side
    855,350.46x = 581,978,659,097.25
  5. Step 5: Solve for x
    x = 581,978,659,097.25/855,350.46
  6. Step 6: Final answer
    x = 680,397.90

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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.