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Finding the Fourth Proportional to 371,852, 559,801.28 and 338,784.56

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Solution

The fourth proportional to 371,852, 559,801.28 and 338,784.56 is: 510,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,852 : 559,801.28 = 338,784.56 : x
  2. Step 2: Convert to fraction form
    371,852/559,801.28 = 338,784.56/x
  3. Step 3: Cross multiply
    371,852x = 559,801.28 × 338,784.56
  4. Step 4: Simplify right side
    371,852x = 189,652,030,332.24
  5. Step 5: Solve for x
    x = 189,652,030,332.24/371,852
  6. Step 6: Final answer
    x = 510,020.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.