Home / 698,449.60-1,047,674.40-199,813.60

Finding the Fourth Proportional to 698,449.60, 1,047,674.40 and 199,813.60

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Solution

The fourth proportional to 698,449.60, 1,047,674.40 and 199,813.60 is: 299,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,449.60 : 1,047,674.40 = 199,813.60 : x
  2. Step 2: Convert to fraction form
    698,449.60/1,047,674.40 = 199,813.60/x
  3. Step 3: Cross multiply
    698,449.60x = 1,047,674.40 × 199,813.60
  4. Step 4: Simplify right side
    698,449.60x = 209,339,593,491.84
  5. Step 5: Solve for x
    x = 209,339,593,491.84/698,449.60
  6. Step 6: Final answer
    x = 299,720.40

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Double scale
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Similar ratio
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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.