Home / 787,005.87-1,180,508.82-218,387.16

Finding the Fourth Proportional to 787,005.87, 1,180,508.82 and 218,387.16

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Solution

The fourth proportional to 787,005.87, 1,180,508.82 and 218,387.16 is: 327,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,005.87 : 1,180,508.82 = 218,387.16 : x
  2. Step 2: Convert to fraction form
    787,005.87/1,180,508.82 = 218,387.16/x
  3. Step 3: Cross multiply
    787,005.87x = 1,180,508.82 × 218,387.16
  4. Step 4: Simplify right side
    787,005.87x = 257,807,968,554.75
  5. Step 5: Solve for x
    x = 257,807,968,554.75/787,005.87
  6. Step 6: Final answer
    x = 327,580.74

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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.