Home / 855,628.20-1,180,396.26-515,907.72

Finding the Fourth Proportional to 855,628.20, 1,180,396.26 and 515,907.72

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Solution

The fourth proportional to 855,628.20, 1,180,396.26 and 515,907.72 is: 711,729.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,628.20 : 1,180,396.26 = 515,907.72 : x
  2. Step 2: Convert to fraction form
    855,628.20/1,180,396.26 = 515,907.72/x
  3. Step 3: Cross multiply
    855,628.20x = 1,180,396.26 × 515,907.72
  4. Step 4: Simplify right side
    855,628.20x = 608,975,543,193.13
  5. Step 5: Solve for x
    x = 608,975,543,193.13/855,628.20
  6. Step 6: Final answer
    x = 711,729.16

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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.