Home / 1,115,379.29-1,539,098.49-631,840.88

Finding the Fourth Proportional to 1,115,379.29, 1,539,098.49 and 631,840.88

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Solution

The fourth proportional to 1,115,379.29, 1,539,098.49 and 631,840.88 is: 871,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,379.29 : 1,539,098.49 = 631,840.88 : x
  2. Step 2: Convert to fraction form
    1,115,379.29/1,539,098.49 = 631,840.88/x
  3. Step 3: Cross multiply
    1,115,379.29x = 1,539,098.49 × 631,840.88
  4. Step 4: Simplify right side
    1,115,379.29x = 972,465,344,328.27
  5. Step 5: Solve for x
    x = 972,465,344,328.27/1,115,379.29
  6. Step 6: Final answer
    x = 871,869.64

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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.