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Finding the Fourth Proportional to 528,329.97, 729,095.36 and 301,980.33

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Solution

The fourth proportional to 528,329.97, 729,095.36 and 301,980.33 is: 416,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,329.97 : 729,095.36 = 301,980.33 : x
  2. Step 2: Convert to fraction form
    528,329.97/729,095.36 = 301,980.33/x
  3. Step 3: Cross multiply
    528,329.97x = 729,095.36 × 301,980.33
  4. Step 4: Simplify right side
    528,329.97x = 220,172,457,414.27
  5. Step 5: Solve for x
    x = 220,172,457,414.27/528,329.97
  6. Step 6: Final answer
    x = 416,732.86

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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.