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Finding the Fourth Proportional to 528,753.78, 730,059.48 and 325,078.02

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Solution

The fourth proportional to 528,753.78, 730,059.48 and 325,078.02 is: 448,840.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,753.78 : 730,059.48 = 325,078.02 : x
  2. Step 2: Convert to fraction form
    528,753.78/730,059.48 = 325,078.02/x
  3. Step 3: Cross multiply
    528,753.78x = 730,059.48 × 325,078.02
  4. Step 4: Simplify right side
    528,753.78x = 237,326,290,240.63
  5. Step 5: Solve for x
    x = 237,326,290,240.63/528,753.78
  6. Step 6: Final answer
    x = 448,840.84

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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.