Home / 711,034.08-981,224.52-388,743.60

Finding the Fourth Proportional to 711,034.08, 981,224.52 and 388,743.60

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Solution

The fourth proportional to 711,034.08, 981,224.52 and 388,743.60 is: 536,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,034.08 : 981,224.52 = 388,743.60 : x
  2. Step 2: Convert to fraction form
    711,034.08/981,224.52 = 388,743.60/x
  3. Step 3: Cross multiply
    711,034.08x = 981,224.52 × 388,743.60
  4. Step 4: Simplify right side
    711,034.08x = 381,444,752,313.07
  5. Step 5: Solve for x
    x = 381,444,752,313.07/711,034.08
  6. Step 6: Final answer
    x = 536,464.80

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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.