Home / 3,114,292.80-4,671,439.20-839,812.80

Finding the Fourth Proportional to 3,114,292.80, 4,671,439.20 and 839,812.80

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Solution

The fourth proportional to 3,114,292.80, 4,671,439.20 and 839,812.80 is: 1,259,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114,292.80 : 4,671,439.20 = 839,812.80 : x
  2. Step 2: Convert to fraction form
    3,114,292.80/4,671,439.20 = 839,812.80/x
  3. Step 3: Cross multiply
    3,114,292.80x = 4,671,439.20 × 839,812.80
  4. Step 4: Simplify right side
    3,114,292.80x = 3,923,134,434,581.76
  5. Step 5: Solve for x
    x = 3,923,134,434,581.76/3,114,292.80
  6. Step 6: Final answer
    x = 1,259,719.20

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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.