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Finding the Fourth Proportional to 485,571.91, 670,512.35 and 304,594.93

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Solution

The fourth proportional to 485,571.91, 670,512.35 and 304,594.93 is: 420,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,571.91 : 670,512.35 = 304,594.93 : x
  2. Step 2: Convert to fraction form
    485,571.91/670,512.35 = 304,594.93/x
  3. Step 3: Cross multiply
    485,571.91x = 670,512.35 × 304,594.93
  4. Step 4: Simplify right side
    485,571.91x = 204,234,657,436.85
  5. Step 5: Solve for x
    x = 204,234,657,436.85/485,571.91
  6. Step 6: Final answer
    x = 420,606.41

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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.