Home / 787,006.37-1,180,509.57-218,387.66

Finding the Fourth Proportional to 787,006.37, 1,180,509.57 and 218,387.66

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Solution

The fourth proportional to 787,006.37, 1,180,509.57 and 218,387.66 is: 327,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,006.37 : 1,180,509.57 = 218,387.66 : x
  2. Step 2: Convert to fraction form
    787,006.37/1,180,509.57 = 218,387.66/x
  3. Step 3: Cross multiply
    787,006.37x = 1,180,509.57 × 218,387.66
  4. Step 4: Simplify right side
    787,006.37x = 257,808,722,599.91
  5. Step 5: Solve for x
    x = 257,808,722,599.91/787,006.37
  6. Step 6: Final answer
    x = 327,581.49

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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.