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Finding the Fourth Proportional to 529,479.83, 730,687.00 and 287,763.02

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Solution

The fourth proportional to 529,479.83, 730,687.00 and 287,763.02 is: 397,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,479.83 : 730,687.00 = 287,763.02 : x
  2. Step 2: Convert to fraction form
    529,479.83/730,687.00 = 287,763.02/x
  3. Step 3: Cross multiply
    529,479.83x = 730,687.00 × 287,763.02
  4. Step 4: Simplify right side
    529,479.83x = 210,264,698,902.05
  5. Step 5: Solve for x
    x = 210,264,698,902.05/529,479.83
  6. Step 6: Final answer
    x = 397,115.60

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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.