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Finding the Fourth Proportional to 572,717.40, 859,076.10 and 198,740.40

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Solution

The fourth proportional to 572,717.40, 859,076.10 and 198,740.40 is: 298,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,717.40 : 859,076.10 = 198,740.40 : x
  2. Step 2: Convert to fraction form
    572,717.40/859,076.10 = 198,740.40/x
  3. Step 3: Cross multiply
    572,717.40x = 859,076.10 × 198,740.40
  4. Step 4: Simplify right side
    572,717.40x = 170,733,127,744.44
  5. Step 5: Solve for x
    x = 170,733,127,744.44/572,717.40
  6. Step 6: Final answer
    x = 298,110.60

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Similar ratio
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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.