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Finding the Fourth Proportional to 529,139.33, 730,327.82 and 325,365.60

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Solution

The fourth proportional to 529,139.33, 730,327.82 and 325,365.60 is: 449,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,139.33 : 730,327.82 = 325,365.60 : x
  2. Step 2: Convert to fraction form
    529,139.33/730,327.82 = 325,365.60/x
  3. Step 3: Cross multiply
    529,139.33x = 730,327.82 × 325,365.60
  4. Step 4: Simplify right side
    529,139.33x = 237,623,547,724.16
  5. Step 5: Solve for x
    x = 237,623,547,724.16/529,139.33
  6. Step 6: Final answer
    x = 449,075.58

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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.