Home / 3,121,113-4,681,669.50-757,209

Finding the Fourth Proportional to 3,121,113, 4,681,669.50 and 757,209

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Solution

The fourth proportional to 3,121,113, 4,681,669.50 and 757,209 is: 1,135,813.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,113 : 4,681,669.50 = 757,209 : x
  2. Step 2: Convert to fraction form
    3,121,113/4,681,669.50 = 757,209/x
  3. Step 3: Cross multiply
    3,121,113x = 4,681,669.50 × 757,209
  4. Step 4: Simplify right side
    3,121,113x = 3,545,002,280,425.50
  5. Step 5: Solve for x
    x = 3,545,002,280,425.50/3,121,113
  6. Step 6: Final answer
    x = 1,135,813.50

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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.