Home / 756,119.10-1,043,463.15-465,620.70

Finding the Fourth Proportional to 756,119.10, 1,043,463.15 and 465,620.70

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Solution

The fourth proportional to 756,119.10, 1,043,463.15 and 465,620.70 is: 642,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,119.10 : 1,043,463.15 = 465,620.70 : x
  2. Step 2: Convert to fraction form
    756,119.10/1,043,463.15 = 465,620.70/x
  3. Step 3: Cross multiply
    756,119.10x = 1,043,463.15 × 465,620.70
  4. Step 4: Simplify right side
    756,119.10x = 485,858,042,327.21
  5. Step 5: Solve for x
    x = 485,858,042,327.21/756,119.10
  6. Step 6: Final answer
    x = 642,568.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.