Home / 1,415,188.89-1,952,447.81-802,987.11

Finding the Fourth Proportional to 1,415,188.89, 1,952,447.81 and 802,987.11

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Solution

The fourth proportional to 1,415,188.89, 1,952,447.81 and 802,987.11 is: 1,107,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,188.89 : 1,952,447.81 = 802,987.11 : x
  2. Step 2: Convert to fraction form
    1,415,188.89/1,952,447.81 = 802,987.11/x
  3. Step 3: Cross multiply
    1,415,188.89x = 1,952,447.81 × 802,987.11
  4. Step 4: Simplify right side
    1,415,188.89x = 1,567,790,420,362.79
  5. Step 5: Solve for x
    x = 1,567,790,420,362.79/1,415,188.89
  6. Step 6: Final answer
    x = 1,107,831.21

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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.