Home / 1,218,354.09-1,681,504.60-702,009.13

Finding the Fourth Proportional to 1,218,354.09, 1,681,504.60 and 702,009.13

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Solution

The fourth proportional to 1,218,354.09, 1,681,504.60 and 702,009.13 is: 968,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,354.09 : 1,681,504.60 = 702,009.13 : x
  2. Step 2: Convert to fraction form
    1,218,354.09/1,681,504.60 = 702,009.13/x
  3. Step 3: Cross multiply
    1,218,354.09x = 1,681,504.60 × 702,009.13
  4. Step 4: Simplify right side
    1,218,354.09x = 1,180,431,583,092.02
  5. Step 5: Solve for x
    x = 1,180,431,583,092.02/1,218,354.09
  6. Step 6: Final answer
    x = 968,873.98

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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.