Home / 767,907.40-1,151,861.10-488,662.60

Finding the Fourth Proportional to 767,907.40, 1,151,861.10 and 488,662.60

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Solution

The fourth proportional to 767,907.40, 1,151,861.10 and 488,662.60 is: 732,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,907.40 : 1,151,861.10 = 488,662.60 : x
  2. Step 2: Convert to fraction form
    767,907.40/1,151,861.10 = 488,662.60/x
  3. Step 3: Cross multiply
    767,907.40x = 1,151,861.10 × 488,662.60
  4. Step 4: Simplify right side
    767,907.40x = 562,871,439,964.86
  5. Step 5: Solve for x
    x = 562,871,439,964.86/767,907.40
  6. Step 6: Final answer
    x = 732,993.90

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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.