Home / 911,509.85-1,257,776.33-503,587.37

Finding the Fourth Proportional to 911,509.85, 1,257,776.33 and 503,587.37

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Solution

The fourth proportional to 911,509.85, 1,257,776.33 and 503,587.37 is: 694,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,509.85 : 1,257,776.33 = 503,587.37 : x
  2. Step 2: Convert to fraction form
    911,509.85/1,257,776.33 = 503,587.37/x
  3. Step 3: Cross multiply
    911,509.85x = 1,257,776.33 × 503,587.37
  4. Step 4: Simplify right side
    911,509.85x = 633,400,265,266.13
  5. Step 5: Solve for x
    x = 633,400,265,266.13/911,509.85
  6. Step 6: Final answer
    x = 694,891.30

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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.