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Finding the Fourth Proportional to 529,479.08, 730,685.96 and 287,762.27

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Solution

The fourth proportional to 529,479.08, 730,685.96 and 287,762.27 is: 397,114.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,479.08 : 730,685.96 = 287,762.27 : x
  2. Step 2: Convert to fraction form
    529,479.08/730,685.96 = 287,762.27/x
  3. Step 3: Cross multiply
    529,479.08x = 730,685.96 × 287,762.27
  4. Step 4: Simplify right side
    529,479.08x = 210,263,852,222.37
  5. Step 5: Solve for x
    x = 210,263,852,222.37/529,479.08
  6. Step 6: Final answer
    x = 397,114.56

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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.