Home / 872,890.80-1,309,336.20-241,804.32

Finding the Fourth Proportional to 872,890.80, 1,309,336.20 and 241,804.32

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Solution

The fourth proportional to 872,890.80, 1,309,336.20 and 241,804.32 is: 362,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,890.80 : 1,309,336.20 = 241,804.32 : x
  2. Step 2: Convert to fraction form
    872,890.80/1,309,336.20 = 241,804.32/x
  3. Step 3: Cross multiply
    872,890.80x = 1,309,336.20 × 241,804.32
  4. Step 4: Simplify right side
    872,890.80x = 316,603,149,492.38
  5. Step 5: Solve for x
    x = 316,603,149,492.38/872,890.80
  6. Step 6: Final answer
    x = 362,706.48

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Double scale
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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.