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Finding the Fourth Proportional to 528,097.76, 790,999.20 and 325,075.04

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Solution

The fourth proportional to 528,097.76, 790,999.20 and 325,075.04 is: 486,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,097.76 : 790,999.20 = 325,075.04 : x
  2. Step 2: Convert to fraction form
    528,097.76/790,999.20 = 325,075.04/x
  3. Step 3: Cross multiply
    528,097.76x = 790,999.20 × 325,075.04
  4. Step 4: Simplify right side
    528,097.76x = 257,134,096,579.97
  5. Step 5: Solve for x
    x = 257,134,096,579.97/528,097.76
  6. Step 6: Final answer
    x = 486,906.24

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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.