Home / 1,171,286.40-1,755,892.80-1,045,315.20

Finding the Fourth Proportional to 1,171,286.40, 1,755,892.80 and 1,045,315.20

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Solution

The fourth proportional to 1,171,286.40, 1,755,892.80 and 1,045,315.20 is: 1,567,047.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,286.40 : 1,755,892.80 = 1,045,315.20 : x
  2. Step 2: Convert to fraction form
    1,171,286.40/1,755,892.80 = 1,045,315.20/x
  3. Step 3: Cross multiply
    1,171,286.40x = 1,755,892.80 × 1,045,315.20
  4. Step 4: Simplify right side
    1,171,286.40x = 1,835,461,433,410.56
  5. Step 5: Solve for x
    x = 1,835,461,433,410.56/1,171,286.40
  6. Step 6: Final answer
    x = 1,567,047.51

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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.