Home / 771,871.50-1,065,166.76-427,704.44

Finding the Fourth Proportional to 771,871.50, 1,065,166.76 and 427,704.44

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Solution

The fourth proportional to 771,871.50, 1,065,166.76 and 427,704.44 is: 590,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,871.50 : 1,065,166.76 = 427,704.44 : x
  2. Step 2: Convert to fraction form
    771,871.50/1,065,166.76 = 427,704.44/x
  3. Step 3: Cross multiply
    771,871.50x = 1,065,166.76 × 427,704.44
  4. Step 4: Simplify right side
    771,871.50x = 455,576,548,335.84
  5. Step 5: Solve for x
    x = 455,576,548,335.84/771,871.50
  6. Step 6: Final answer
    x = 590,223.31

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Double scale
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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.