Home / 759,738.92-1,048,467.12-420,209.60

Finding the Fourth Proportional to 759,738.92, 1,048,467.12 and 420,209.60

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Solution

The fourth proportional to 759,738.92, 1,048,467.12 and 420,209.60 is: 579,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,738.92 : 1,048,467.12 = 420,209.60 : x
  2. Step 2: Convert to fraction form
    759,738.92/1,048,467.12 = 420,209.60/x
  3. Step 3: Cross multiply
    759,738.92x = 1,048,467.12 × 420,209.60
  4. Step 4: Simplify right side
    759,738.92x = 440,575,949,108.35
  5. Step 5: Solve for x
    x = 440,575,949,108.35/759,738.92
  6. Step 6: Final answer
    x = 579,904.41

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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.