Home / 1,209,749.43-1,814,886.69-368,279.31

Finding the Fourth Proportional to 1,209,749.43, 1,814,886.69 and 368,279.31

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Solution

The fourth proportional to 1,209,749.43, 1,814,886.69 and 368,279.31 is: 552,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,749.43 : 1,814,886.69 = 368,279.31 : x
  2. Step 2: Convert to fraction form
    1,209,749.43/1,814,886.69 = 368,279.31/x
  3. Step 3: Cross multiply
    1,209,749.43x = 1,814,886.69 × 368,279.31
  4. Step 4: Simplify right side
    1,209,749.43x = 668,385,217,921.38
  5. Step 5: Solve for x
    x = 668,385,217,921.38/1,209,749.43
  6. Step 6: Final answer
    x = 552,498.89

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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.