Home / 439,428.38-606,475.88-278,298.41

Finding the Fourth Proportional to 439,428.38, 606,475.88 and 278,298.41

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Solution

The fourth proportional to 439,428.38, 606,475.88 and 278,298.41 is: 384,092.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,428.38 : 606,475.88 = 278,298.41 : x
  2. Step 2: Convert to fraction form
    439,428.38/606,475.88 = 278,298.41/x
  3. Step 3: Cross multiply
    439,428.38x = 606,475.88 × 278,298.41
  4. Step 4: Simplify right side
    439,428.38x = 168,781,268,683.48
  5. Step 5: Solve for x
    x = 168,781,268,683.48/439,428.38
  6. Step 6: Final answer
    x = 384,092.79

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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.