Home / 756,908.20-1,133,807.10-520,517.80

Finding the Fourth Proportional to 756,908.20, 1,133,807.10 and 520,517.80

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Solution

The fourth proportional to 756,908.20, 1,133,807.10 and 520,517.80 is: 779,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,908.20 : 1,133,807.10 = 520,517.80 : x
  2. Step 2: Convert to fraction form
    756,908.20/1,133,807.10 = 520,517.80/x
  3. Step 3: Cross multiply
    756,908.20x = 1,133,807.10 × 520,517.80
  4. Step 4: Simplify right side
    756,908.20x = 590,166,777,316.38
  5. Step 5: Solve for x
    x = 590,166,777,316.38/756,908.20
  6. Step 6: Final answer
    x = 779,707.21

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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.