Home / 1,280,135.37-1,766,640.48-736,271.31

Finding the Fourth Proportional to 1,280,135.37, 1,766,640.48 and 736,271.31

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Solution

The fourth proportional to 1,280,135.37, 1,766,640.48 and 736,271.31 is: 1,016,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,135.37 : 1,766,640.48 = 736,271.31 : x
  2. Step 2: Convert to fraction form
    1,280,135.37/1,766,640.48 = 736,271.31/x
  3. Step 3: Cross multiply
    1,280,135.37x = 1,766,640.48 × 736,271.31
  4. Step 4: Simplify right side
    1,280,135.37x = 1,300,726,700,508.63
  5. Step 5: Solve for x
    x = 1,300,726,700,508.63/1,280,135.37
  6. Step 6: Final answer
    x = 1,016,085.28

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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.