Home / 454,427.10-681,640.65-328,455.90

Finding the Fourth Proportional to 454,427.10, 681,640.65 and 328,455.90

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Solution

The fourth proportional to 454,427.10, 681,640.65 and 328,455.90 is: 492,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,427.10 : 681,640.65 = 328,455.90 : x
  2. Step 2: Convert to fraction form
    454,427.10/681,640.65 = 328,455.90/x
  3. Step 3: Cross multiply
    454,427.10x = 681,640.65 × 328,455.90
  4. Step 4: Simplify right side
    454,427.10x = 223,888,893,172.34
  5. Step 5: Solve for x
    x = 223,888,893,172.34/454,427.10
  6. Step 6: Final answer
    x = 492,683.85

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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.