Home / 3,121,115-4,681,672.50-757,211

Finding the Fourth Proportional to 3,121,115, 4,681,672.50 and 757,211

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Solution

The fourth proportional to 3,121,115, 4,681,672.50 and 757,211 is: 1,135,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,115 : 4,681,672.50 = 757,211 : x
  2. Step 2: Convert to fraction form
    3,121,115/4,681,672.50 = 757,211/x
  3. Step 3: Cross multiply
    3,121,115x = 4,681,672.50 × 757,211
  4. Step 4: Simplify right side
    3,121,115x = 3,545,013,915,397.50
  5. Step 5: Solve for x
    x = 3,545,013,915,397.50/3,121,115
  6. Step 6: Final answer
    x = 1,135,816.50

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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.