Home / 747,427.10-1,120,812.60-297,998.60

Finding the Fourth Proportional to 747,427.10, 1,120,812.60 and 297,998.60

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Solution

The fourth proportional to 747,427.10, 1,120,812.60 and 297,998.60 is: 446,867.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,427.10 : 1,120,812.60 = 297,998.60 : x
  2. Step 2: Convert to fraction form
    747,427.10/1,120,812.60 = 297,998.60/x
  3. Step 3: Cross multiply
    747,427.10x = 1,120,812.60 × 297,998.60
  4. Step 4: Simplify right side
    747,427.10x = 334,000,585,662.36
  5. Step 5: Solve for x
    x = 334,000,585,662.36/747,427.10
  6. Step 6: Final answer
    x = 446,867.11

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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.