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Finding the Fourth Proportional to 485,798.92, 670,403.69 and 270,952.90

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Solution

The fourth proportional to 485,798.92, 670,403.69 and 270,952.90 is: 373,915.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,798.92 : 670,403.69 = 270,952.90 : x
  2. Step 2: Convert to fraction form
    485,798.92/670,403.69 = 270,952.90/x
  3. Step 3: Cross multiply
    485,798.92x = 670,403.69 × 270,952.90
  4. Step 4: Simplify right side
    485,798.92x = 181,647,823,976.20
  5. Step 5: Solve for x
    x = 181,647,823,976.20/485,798.92
  6. Step 6: Final answer
    x = 373,915.66

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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.