Home / 638,227.35-880,742.34-347,841.54

Finding the Fourth Proportional to 638,227.35, 880,742.34 and 347,841.54

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Solution

The fourth proportional to 638,227.35, 880,742.34 and 347,841.54 is: 480,015.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,227.35 : 880,742.34 = 347,841.54 : x
  2. Step 2: Convert to fraction form
    638,227.35/880,742.34 = 347,841.54/x
  3. Step 3: Cross multiply
    638,227.35x = 880,742.34 × 347,841.54
  4. Step 4: Simplify right side
    638,227.35x = 306,358,771,888.80
  5. Step 5: Solve for x
    x = 306,358,771,888.80/638,227.35
  6. Step 6: Final answer
    x = 480,015.11

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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.