Home / 879,073.20-1,318,609.80-373,503.60

Finding the Fourth Proportional to 879,073.20, 1,318,609.80 and 373,503.60

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Solution

The fourth proportional to 879,073.20, 1,318,609.80 and 373,503.60 is: 560,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,073.20 : 1,318,609.80 = 373,503.60 : x
  2. Step 2: Convert to fraction form
    879,073.20/1,318,609.80 = 373,503.60/x
  3. Step 3: Cross multiply
    879,073.20x = 1,318,609.80 × 373,503.60
  4. Step 4: Simplify right side
    879,073.20x = 492,505,507,295.28
  5. Step 5: Solve for x
    x = 492,505,507,295.28/879,073.20
  6. Step 6: Final answer
    x = 560,255.40

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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.