Home / 887,128.70-1,330,693.05-414,736.70

Finding the Fourth Proportional to 887,128.70, 1,330,693.05 and 414,736.70

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Solution

The fourth proportional to 887,128.70, 1,330,693.05 and 414,736.70 is: 622,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,128.70 : 1,330,693.05 = 414,736.70 : x
  2. Step 2: Convert to fraction form
    887,128.70/1,330,693.05 = 414,736.70/x
  3. Step 3: Cross multiply
    887,128.70x = 1,330,693.05 × 414,736.70
  4. Step 4: Simplify right side
    887,128.70x = 551,887,244,269.94
  5. Step 5: Solve for x
    x = 551,887,244,269.94/887,128.70
  6. Step 6: Final answer
    x = 622,105.05

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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.