Home / 868,090.40-1,302,135.60-307,181.60

Finding the Fourth Proportional to 868,090.40, 1,302,135.60 and 307,181.60

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Solution

The fourth proportional to 868,090.40, 1,302,135.60 and 307,181.60 is: 460,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,090.40 : 1,302,135.60 = 307,181.60 : x
  2. Step 2: Convert to fraction form
    868,090.40/1,302,135.60 = 307,181.60/x
  3. Step 3: Cross multiply
    868,090.40x = 1,302,135.60 × 307,181.60
  4. Step 4: Simplify right side
    868,090.40x = 399,992,097,024.96
  5. Step 5: Solve for x
    x = 399,992,097,024.96/868,090.40
  6. Step 6: Final answer
    x = 460,772.40

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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.