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Finding the Fourth Proportional to 654,809.60, 981,523.20 and 373,721.60

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Solution

The fourth proportional to 654,809.60, 981,523.20 and 373,721.60 is: 560,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,809.60 : 981,523.20 = 373,721.60 : x
  2. Step 2: Convert to fraction form
    654,809.60/981,523.20 = 373,721.60/x
  3. Step 3: Cross multiply
    654,809.60x = 981,523.20 × 373,721.60
  4. Step 4: Simplify right side
    654,809.60x = 366,816,420,741.12
  5. Step 5: Solve for x
    x = 366,816,420,741.12/654,809.60
  6. Step 6: Final answer
    x = 560,187.91

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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.