Home / 899,009.40-1,348,514.10-543,840.60

Finding the Fourth Proportional to 899,009.40, 1,348,514.10 and 543,840.60

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Solution

The fourth proportional to 899,009.40, 1,348,514.10 and 543,840.60 is: 815,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,009.40 : 1,348,514.10 = 543,840.60 : x
  2. Step 2: Convert to fraction form
    899,009.40/1,348,514.10 = 543,840.60/x
  3. Step 3: Cross multiply
    899,009.40x = 1,348,514.10 × 543,840.60
  4. Step 4: Simplify right side
    899,009.40x = 733,376,717,252.46
  5. Step 5: Solve for x
    x = 733,376,717,252.46/899,009.40
  6. Step 6: Final answer
    x = 815,760.90

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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.