Home / 787,261.76-1,086,389.88-465,075.32

Finding the Fourth Proportional to 787,261.76, 1,086,389.88 and 465,075.32

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Solution

The fourth proportional to 787,261.76, 1,086,389.88 and 465,075.32 is: 641,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,261.76 : 1,086,389.88 = 465,075.32 : x
  2. Step 2: Convert to fraction form
    787,261.76/1,086,389.88 = 465,075.32/x
  3. Step 3: Cross multiply
    787,261.76x = 1,086,389.88 × 465,075.32
  4. Step 4: Simplify right side
    787,261.76x = 505,253,121,085.76
  5. Step 5: Solve for x
    x = 505,253,121,085.76/787,261.76
  6. Step 6: Final answer
    x = 641,785.42

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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.