Home / 1,115,138.40-1,672,707.60-367,087.20

Finding the Fourth Proportional to 1,115,138.40, 1,672,707.60 and 367,087.20

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Solution

The fourth proportional to 1,115,138.40, 1,672,707.60 and 367,087.20 is: 550,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,138.40 : 1,672,707.60 = 367,087.20 : x
  2. Step 2: Convert to fraction form
    1,115,138.40/1,672,707.60 = 367,087.20/x
  3. Step 3: Cross multiply
    1,115,138.40x = 1,672,707.60 × 367,087.20
  4. Step 4: Simplify right side
    1,115,138.40x = 614,029,549,302.72
  5. Step 5: Solve for x
    x = 614,029,549,302.72/1,115,138.40
  6. Step 6: Final answer
    x = 550,630.80

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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.