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Finding the Fourth Proportional to 590,467.80, 885,701.70 and 340,858.20

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Solution

The fourth proportional to 590,467.80, 885,701.70 and 340,858.20 is: 511,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,467.80 : 885,701.70 = 340,858.20 : x
  2. Step 2: Convert to fraction form
    590,467.80/885,701.70 = 340,858.20/x
  3. Step 3: Cross multiply
    590,467.80x = 885,701.70 × 340,858.20
  4. Step 4: Simplify right side
    590,467.80x = 301,898,687,198.94
  5. Step 5: Solve for x
    x = 301,898,687,198.94/590,467.80
  6. Step 6: Final answer
    x = 511,287.30

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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.