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Finding the Fourth Proportional to 641,700.33, 963,496.72 and 357,945.28

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Solution

The fourth proportional to 641,700.33, 963,496.72 and 357,945.28 is: 537,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,700.33 : 963,496.72 = 357,945.28 : x
  2. Step 2: Convert to fraction form
    641,700.33/963,496.72 = 357,945.28/x
  3. Step 3: Cross multiply
    641,700.33x = 963,496.72 × 357,945.28
  4. Step 4: Simplify right side
    641,700.33x = 344,879,101,258.17
  5. Step 5: Solve for x
    x = 344,879,101,258.17/641,700.33
  6. Step 6: Final answer
    x = 537,445.73

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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.