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Finding the Fourth Proportional to 536,561.70, 740,293.67 and 321,623.34

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Solution

The fourth proportional to 536,561.70, 740,293.67 and 321,623.34 is: 443,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,561.70 : 740,293.67 = 321,623.34 : x
  2. Step 2: Convert to fraction form
    536,561.70/740,293.67 = 321,623.34/x
  3. Step 3: Cross multiply
    536,561.70x = 740,293.67 × 321,623.34
  4. Step 4: Simplify right side
    536,561.70x = 238,095,721,118.14
  5. Step 5: Solve for x
    x = 238,095,721,118.14/536,561.70
  6. Step 6: Final answer
    x = 443,743.42

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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.