Home / 638,271.50-880,811.82-347,899.86

Finding the Fourth Proportional to 638,271.50, 880,811.82 and 347,899.86

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Solution

The fourth proportional to 638,271.50, 880,811.82 and 347,899.86 is: 480,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,271.50 : 880,811.82 = 347,899.86 : x
  2. Step 2: Convert to fraction form
    638,271.50/880,811.82 = 347,899.86/x
  3. Step 3: Cross multiply
    638,271.50x = 880,811.82 × 347,899.86
  4. Step 4: Simplify right side
    638,271.50x = 306,434,308,864.35
  5. Step 5: Solve for x
    x = 306,434,308,864.35/638,271.50
  6. Step 6: Final answer
    x = 480,100.26

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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.