Home / 762,455.08-1,052,171.94-422,920.36

Finding the Fourth Proportional to 762,455.08, 1,052,171.94 and 422,920.36

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Solution

The fourth proportional to 762,455.08, 1,052,171.94 and 422,920.36 is: 583,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,455.08 : 1,052,171.94 = 422,920.36 : x
  2. Step 2: Convert to fraction form
    762,455.08/1,052,171.94 = 422,920.36/x
  3. Step 3: Cross multiply
    762,455.08x = 1,052,171.94 × 422,920.36
  4. Step 4: Simplify right side
    762,455.08x = 444,984,935,646.70
  5. Step 5: Solve for x
    x = 444,984,935,646.70/762,455.08
  6. Step 6: Final answer
    x = 583,621.18

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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.