Home / 1,515,328.69-2,091,202.36-861,937.91

Finding the Fourth Proportional to 1,515,328.69, 2,091,202.36 and 861,937.91

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Solution

The fourth proportional to 1,515,328.69, 2,091,202.36 and 861,937.91 is: 1,189,502.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,328.69 : 2,091,202.36 = 861,937.91 : x
  2. Step 2: Convert to fraction form
    1,515,328.69/2,091,202.36 = 861,937.91/x
  3. Step 3: Cross multiply
    1,515,328.69x = 2,091,202.36 × 861,937.91
  4. Step 4: Simplify right side
    1,515,328.69x = 1,802,486,586,796.62
  5. Step 5: Solve for x
    x = 1,802,486,586,796.62/1,515,328.69
  6. Step 6: Final answer
    x = 1,189,502.05

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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.