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Finding the Fourth Proportional to 590,638.40, 885,957.60 and 275,127.20

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Solution

The fourth proportional to 590,638.40, 885,957.60 and 275,127.20 is: 412,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,638.40 : 885,957.60 = 275,127.20 : x
  2. Step 2: Convert to fraction form
    590,638.40/885,957.60 = 275,127.20/x
  3. Step 3: Cross multiply
    590,638.40x = 885,957.60 × 275,127.20
  4. Step 4: Simplify right side
    590,638.40x = 243,751,033,806.72
  5. Step 5: Solve for x
    x = 243,751,033,806.72/590,638.40
  6. Step 6: Final answer
    x = 412,690.80

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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.