Home / 1,515,505.84-2,091,387.72-836,442.40

Finding the Fourth Proportional to 1,515,505.84, 2,091,387.72 and 836,442.40

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Solution

The fourth proportional to 1,515,505.84, 2,091,387.72 and 836,442.40 is: 1,154,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,505.84 : 2,091,387.72 = 836,442.40 : x
  2. Step 2: Convert to fraction form
    1,515,505.84/2,091,387.72 = 836,442.40/x
  3. Step 3: Cross multiply
    1,515,505.84x = 2,091,387.72 × 836,442.40
  4. Step 4: Simplify right side
    1,515,505.84x = 1,749,325,363,847.33
  5. Step 5: Solve for x
    x = 1,749,325,363,847.33/1,515,505.84
  6. Step 6: Final answer
    x = 1,154,284.81

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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.