Home / 3,121,113.50-4,681,670.25-757,209.50

Finding the Fourth Proportional to 3,121,113.50, 4,681,670.25 and 757,209.50

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Solution

The fourth proportional to 3,121,113.50, 4,681,670.25 and 757,209.50 is: 1,135,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,113.50 : 4,681,670.25 = 757,209.50 : x
  2. Step 2: Convert to fraction form
    3,121,113.50/4,681,670.25 = 757,209.50/x
  3. Step 3: Cross multiply
    3,121,113.50x = 4,681,670.25 × 757,209.50
  4. Step 4: Simplify right side
    3,121,113.50x = 3,545,005,189,167.38
  5. Step 5: Solve for x
    x = 3,545,005,189,167.38/3,121,113.50
  6. Step 6: Final answer
    x = 1,135,814.25

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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.