Home / 1,915,663.09-2,871,554.28-1,242,171.58

Finding the Fourth Proportional to 1,915,663.09, 2,871,554.28 and 1,242,171.58

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Solution

The fourth proportional to 1,915,663.09, 2,871,554.28 and 1,242,171.58 is: 1,861,999.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,663.09 : 2,871,554.28 = 1,242,171.58 : x
  2. Step 2: Convert to fraction form
    1,915,663.09/2,871,554.28 = 1,242,171.58/x
  3. Step 3: Cross multiply
    1,915,663.09x = 2,871,554.28 × 1,242,171.58
  4. Step 4: Simplify right side
    1,915,663.09x = 3,566,963,117,043.36
  5. Step 5: Solve for x
    x = 3,566,963,117,043.36/1,915,663.09
  6. Step 6: Final answer
    x = 1,861,999.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.