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Finding the Fourth Proportional to 415,583.34, 573,239.07 and 288,212.46

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Solution

The fourth proportional to 415,583.34, 573,239.07 and 288,212.46 is: 397,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,583.34 : 573,239.07 = 288,212.46 : x
  2. Step 2: Convert to fraction form
    415,583.34/573,239.07 = 288,212.46/x
  3. Step 3: Cross multiply
    415,583.34x = 573,239.07 × 288,212.46
  4. Step 4: Simplify right side
    415,583.34x = 165,214,642,532.81
  5. Step 5: Solve for x
    x = 165,214,642,532.81/415,583.34
  6. Step 6: Final answer
    x = 397,548.76

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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.