Home / 654,222.99-981,085.41-429,523.32

Finding the Fourth Proportional to 654,222.99, 981,085.41 and 429,523.32

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Solution

The fourth proportional to 654,222.99, 981,085.41 and 429,523.32 is: 644,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,222.99 : 981,085.41 = 429,523.32 : x
  2. Step 2: Convert to fraction form
    654,222.99/981,085.41 = 429,523.32/x
  3. Step 3: Cross multiply
    654,222.99x = 981,085.41 × 429,523.32
  4. Step 4: Simplify right side
    654,222.99x = 421,399,062,506.76
  5. Step 5: Solve for x
    x = 421,399,062,506.76/654,222.99
  6. Step 6: Final answer
    x = 644,121.45

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Double scale
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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.