Home / 779,939.22-1,076,338.18-440,458.50

Finding the Fourth Proportional to 779,939.22, 1,076,338.18 and 440,458.50

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Solution

The fourth proportional to 779,939.22, 1,076,338.18 and 440,458.50 is: 607,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,939.22 : 1,076,338.18 = 440,458.50 : x
  2. Step 2: Convert to fraction form
    779,939.22/1,076,338.18 = 440,458.50/x
  3. Step 3: Cross multiply
    779,939.22x = 1,076,338.18 × 440,458.50
  4. Step 4: Simplify right side
    779,939.22x = 474,082,300,255.53
  5. Step 5: Solve for x
    x = 474,082,300,255.53/779,939.22
  6. Step 6: Final answer
    x = 607,845.19

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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.