Home / 1,242,322.56-1,715,480.64-1,178,549.28

Finding the Fourth Proportional to 1,242,322.56, 1,715,480.64 and 1,178,549.28

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Solution

The fourth proportional to 1,242,322.56, 1,715,480.64 and 1,178,549.28 is: 1,627,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,322.56 : 1,715,480.64 = 1,178,549.28 : x
  2. Step 2: Convert to fraction form
    1,242,322.56/1,715,480.64 = 1,178,549.28/x
  3. Step 3: Cross multiply
    1,242,322.56x = 1,715,480.64 × 1,178,549.28
  4. Step 4: Simplify right side
    1,242,322.56x = 2,021,778,473,125.94
  5. Step 5: Solve for x
    x = 2,021,778,473,125.94/1,242,322.56
  6. Step 6: Final answer
    x = 1,627,418.30

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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.