Home / 775,138.58-1,069,635.67-426,303.54

Finding the Fourth Proportional to 775,138.58, 1,069,635.67 and 426,303.54

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Solution

The fourth proportional to 775,138.58, 1,069,635.67 and 426,303.54 is: 588,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,138.58 : 1,069,635.67 = 426,303.54 : x
  2. Step 2: Convert to fraction form
    775,138.58/1,069,635.67 = 426,303.54/x
  3. Step 3: Cross multiply
    775,138.58x = 1,069,635.67 × 426,303.54
  4. Step 4: Simplify right side
    775,138.58x = 455,989,472,631.27
  5. Step 5: Solve for x
    x = 455,989,472,631.27/775,138.58
  6. Step 6: Final answer
    x = 588,268.32

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Double scale
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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.