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Finding the Fourth Proportional to 379,775.40, 570,001.02 and 202,428.84

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Solution

The fourth proportional to 379,775.40, 570,001.02 and 202,428.84 is: 303,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,775.40 : 570,001.02 = 202,428.84 : x
  2. Step 2: Convert to fraction form
    379,775.40/570,001.02 = 202,428.84/x
  3. Step 3: Cross multiply
    379,775.40x = 570,001.02 × 202,428.84
  4. Step 4: Simplify right side
    379,775.40x = 115,384,645,277.42
  5. Step 5: Solve for x
    x = 115,384,645,277.42/379,775.40
  6. Step 6: Final answer
    x = 303,823.38

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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.