Home / 1,515,723.21-2,091,712.55-836,645.13

Finding the Fourth Proportional to 1,515,723.21, 2,091,712.55 and 836,645.13

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Solution

The fourth proportional to 1,515,723.21, 2,091,712.55 and 836,645.13 is: 1,154,578.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,723.21 : 2,091,712.55 = 836,645.13 : x
  2. Step 2: Convert to fraction form
    1,515,723.21/2,091,712.55 = 836,645.13/x
  3. Step 3: Cross multiply
    1,515,723.21x = 2,091,712.55 × 836,645.13
  4. Step 4: Simplify right side
    1,515,723.21x = 1,750,021,114,134.16
  5. Step 5: Solve for x
    x = 1,750,021,114,134.16/1,515,723.21
  6. Step 6: Final answer
    x = 1,154,578.29

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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.