Home / 868,840.20-1,303,325.10-307,801.80

Finding the Fourth Proportional to 868,840.20, 1,303,325.10 and 307,801.80

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Solution

The fourth proportional to 868,840.20, 1,303,325.10 and 307,801.80 is: 461,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,840.20 : 1,303,325.10 = 307,801.80 : x
  2. Step 2: Convert to fraction form
    868,840.20/1,303,325.10 = 307,801.80/x
  3. Step 3: Cross multiply
    868,840.20x = 1,303,325.10 × 307,801.80
  4. Step 4: Simplify right side
    868,840.20x = 401,165,811,765.18
  5. Step 5: Solve for x
    x = 401,165,811,765.18/868,840.20
  6. Step 6: Final answer
    x = 461,725.66

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Double scale
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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.