Home / 862,085.51-1,189,714.91-480,112.30

Finding the Fourth Proportional to 862,085.51, 1,189,714.91 and 480,112.30

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Solution

The fourth proportional to 862,085.51, 1,189,714.91 and 480,112.30 is: 662,575.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,085.51 : 1,189,714.91 = 480,112.30 : x
  2. Step 2: Convert to fraction form
    862,085.51/1,189,714.91 = 480,112.30/x
  3. Step 3: Cross multiply
    862,085.51x = 1,189,714.91 × 480,112.30
  4. Step 4: Simplify right side
    862,085.51x = 571,196,753,435.26
  5. Step 5: Solve for x
    x = 571,196,753,435.26/862,085.51
  6. Step 6: Final answer
    x = 662,575.52

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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.