Home / 1,200,434.80-1,656,821.64-771,251.44

Finding the Fourth Proportional to 1,200,434.80, 1,656,821.64 and 771,251.44

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Solution

The fourth proportional to 1,200,434.80, 1,656,821.64 and 771,251.44 is: 1,064,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,434.80 : 1,656,821.64 = 771,251.44 : x
  2. Step 2: Convert to fraction form
    1,200,434.80/1,656,821.64 = 771,251.44/x
  3. Step 3: Cross multiply
    1,200,434.80x = 1,656,821.64 × 771,251.44
  4. Step 4: Simplify right side
    1,200,434.80x = 1,277,826,075,673.16
  5. Step 5: Solve for x
    x = 1,277,826,075,673.16/1,200,434.80
  6. Step 6: Final answer
    x = 1,064,469.37

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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.