Home / 1,190,009.39-1,642,214.90-646,146.23

Finding the Fourth Proportional to 1,190,009.39, 1,642,214.90 and 646,146.23

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Solution

The fourth proportional to 1,190,009.39, 1,642,214.90 and 646,146.23 is: 891,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,009.39 : 1,642,214.90 = 646,146.23 : x
  2. Step 2: Convert to fraction form
    1,190,009.39/1,642,214.90 = 646,146.23/x
  3. Step 3: Cross multiply
    1,190,009.39x = 1,642,214.90 × 646,146.23
  4. Step 4: Simplify right side
    1,190,009.39x = 1,061,110,962,379.29
  5. Step 5: Solve for x
    x = 1,061,110,962,379.29/1,190,009.39
  6. Step 6: Final answer
    x = 891,682.85

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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.