Home / 779,912.80-1,076,299.20-440,383.44

Finding the Fourth Proportional to 779,912.80, 1,076,299.20 and 440,383.44

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Solution

The fourth proportional to 779,912.80, 1,076,299.20 and 440,383.44 is: 607,740.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,912.80 : 1,076,299.20 = 440,383.44 : x
  2. Step 2: Convert to fraction form
    779,912.80/1,076,299.20 = 440,383.44/x
  3. Step 3: Cross multiply
    779,912.80x = 1,076,299.20 × 440,383.44
  4. Step 4: Simplify right side
    779,912.80x = 473,984,344,165.25
  5. Step 5: Solve for x
    x = 473,984,344,165.25/779,912.80
  6. Step 6: Final answer
    x = 607,740.18

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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.