Home / 759,498.92-1,048,105.74-428,328.56

Finding the Fourth Proportional to 759,498.92, 1,048,105.74 and 428,328.56

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Solution

The fourth proportional to 759,498.92, 1,048,105.74 and 428,328.56 is: 591,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,498.92 : 1,048,105.74 = 428,328.56 : x
  2. Step 2: Convert to fraction form
    759,498.92/1,048,105.74 = 428,328.56/x
  3. Step 3: Cross multiply
    759,498.92x = 1,048,105.74 × 428,328.56
  4. Step 4: Simplify right side
    759,498.92x = 448,933,622,341.93
  5. Step 5: Solve for x
    x = 448,933,622,341.93/759,498.92
  6. Step 6: Final answer
    x = 591,091.85

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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.