Home / 439,402.12-606,346.22-245,776.28

Finding the Fourth Proportional to 439,402.12, 606,346.22 and 245,776.28

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Solution

The fourth proportional to 439,402.12, 606,346.22 and 245,776.28 is: 339,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,402.12 : 606,346.22 = 245,776.28 : x
  2. Step 2: Convert to fraction form
    439,402.12/606,346.22 = 245,776.28/x
  3. Step 3: Cross multiply
    439,402.12x = 606,346.22 × 245,776.28
  4. Step 4: Simplify right side
    439,402.12x = 149,025,515,926.37
  5. Step 5: Solve for x
    x = 149,025,515,926.37/439,402.12
  6. Step 6: Final answer
    x = 339,155.21

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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.