Home / 776,415.38-1,071,476.86-422,819.44

Finding the Fourth Proportional to 776,415.38, 1,071,476.86 and 422,819.44

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Solution

The fourth proportional to 776,415.38, 1,071,476.86 and 422,819.44 is: 583,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,415.38 : 1,071,476.86 = 422,819.44 : x
  2. Step 2: Convert to fraction form
    776,415.38/1,071,476.86 = 422,819.44/x
  3. Step 3: Cross multiply
    776,415.38x = 1,071,476.86 × 422,819.44
  4. Step 4: Simplify right side
    776,415.38x = 453,041,249,002.26
  5. Step 5: Solve for x
    x = 453,041,249,002.26/776,415.38
  6. Step 6: Final answer
    x = 583,503.71

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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.