Home / 779,939.21-1,076,338.19-440,458.49

Finding the Fourth Proportional to 779,939.21, 1,076,338.19 and 440,458.49

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Solution

The fourth proportional to 779,939.21, 1,076,338.19 and 440,458.49 is: 607,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,939.21 : 1,076,338.19 = 440,458.49 : x
  2. Step 2: Convert to fraction form
    779,939.21/1,076,338.19 = 440,458.49/x
  3. Step 3: Cross multiply
    779,939.21x = 1,076,338.19 × 440,458.49
  4. Step 4: Simplify right side
    779,939.21x = 474,082,293,896.73
  5. Step 5: Solve for x
    x = 474,082,293,896.73/779,939.21
  6. Step 6: Final answer
    x = 607,845.19

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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.