Home / 745,153.22-1,028,252.82-422,863.32

Finding the Fourth Proportional to 745,153.22, 1,028,252.82 and 422,863.32

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Solution

The fourth proportional to 745,153.22, 1,028,252.82 and 422,863.32 is: 583,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,153.22 : 1,028,252.82 = 422,863.32 : x
  2. Step 2: Convert to fraction form
    745,153.22/1,028,252.82 = 422,863.32/x
  3. Step 3: Cross multiply
    745,153.22x = 1,028,252.82 × 422,863.32
  4. Step 4: Simplify right side
    745,153.22x = 434,810,401,264.56
  5. Step 5: Solve for x
    x = 434,810,401,264.56/745,153.22
  6. Step 6: Final answer
    x = 583,518.11

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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.