Home / 698,856.12-1,048,278.42-200,220.60

Finding the Fourth Proportional to 698,856.12, 1,048,278.42 and 200,220.60

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Solution

The fourth proportional to 698,856.12, 1,048,278.42 and 200,220.60 is: 300,329.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,856.12 : 1,048,278.42 = 200,220.60 : x
  2. Step 2: Convert to fraction form
    698,856.12/1,048,278.42 = 200,220.60/x
  3. Step 3: Cross multiply
    698,856.12x = 1,048,278.42 × 200,220.60
  4. Step 4: Simplify right side
    698,856.12x = 209,886,934,219.45
  5. Step 5: Solve for x
    x = 209,886,934,219.45/698,856.12
  6. Step 6: Final answer
    x = 300,329.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.