Home / 771,936.48-1,065,331.44-485,701.92

Finding the Fourth Proportional to 771,936.48, 1,065,331.44 and 485,701.92

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Solution

The fourth proportional to 771,936.48, 1,065,331.44 and 485,701.92 is: 670,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,936.48 : 1,065,331.44 = 485,701.92 : x
  2. Step 2: Convert to fraction form
    771,936.48/1,065,331.44 = 485,701.92/x
  3. Step 3: Cross multiply
    771,936.48x = 1,065,331.44 × 485,701.92
  4. Step 4: Simplify right side
    771,936.48x = 517,433,525,844.37
  5. Step 5: Solve for x
    x = 517,433,525,844.37/771,936.48
  6. Step 6: Final answer
    x = 670,305.83

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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.