Home / 779,714.80-1,170,228.30-306,739.60

Finding the Fourth Proportional to 779,714.80, 1,170,228.30 and 306,739.60

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Solution

The fourth proportional to 779,714.80, 1,170,228.30 and 306,739.60 is: 460,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,714.80 : 1,170,228.30 = 306,739.60 : x
  2. Step 2: Convert to fraction form
    779,714.80/1,170,228.30 = 306,739.60/x
  3. Step 3: Cross multiply
    779,714.80x = 1,170,228.30 × 306,739.60
  4. Step 4: Simplify right side
    779,714.80x = 358,955,360,650.68
  5. Step 5: Solve for x
    x = 358,955,360,650.68/779,714.80
  6. Step 6: Final answer
    x = 460,367.51

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.