Home / 1,209,924.88-1,669,682.76-666,049.04

Finding the Fourth Proportional to 1,209,924.88, 1,669,682.76 and 666,049.04

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Solution

The fourth proportional to 1,209,924.88, 1,669,682.76 and 666,049.04 is: 919,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,924.88 : 1,669,682.76 = 666,049.04 : x
  2. Step 2: Convert to fraction form
    1,209,924.88/1,669,682.76 = 666,049.04/x
  3. Step 3: Cross multiply
    1,209,924.88x = 1,669,682.76 × 666,049.04
  4. Step 4: Simplify right side
    1,209,924.88x = 1,112,090,599,402.55
  5. Step 5: Solve for x
    x = 1,112,090,599,402.55/1,209,924.88
  6. Step 6: Final answer
    x = 919,140.20

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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.