Home / 775,259.05-1,069,880.60-469,391.37

Finding the Fourth Proportional to 775,259.05, 1,069,880.60 and 469,391.37

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Solution

The fourth proportional to 775,259.05, 1,069,880.60 and 469,391.37 is: 647,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,259.05 : 1,069,880.60 = 469,391.37 : x
  2. Step 2: Convert to fraction form
    775,259.05/1,069,880.60 = 469,391.37/x
  3. Step 3: Cross multiply
    775,259.05x = 1,069,880.60 × 469,391.37
  4. Step 4: Simplify right side
    775,259.05x = 502,192,721,743.90
  5. Step 5: Solve for x
    x = 502,192,721,743.90/775,259.05
  6. Step 6: Final answer
    x = 647,774.09

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1.5x scale

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.