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Finding the Fourth Proportional to 529,477.46, 730,684.53 and 287,760.04

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Solution

The fourth proportional to 529,477.46, 730,684.53 and 287,760.04 is: 397,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,477.46 : 730,684.53 = 287,760.04 : x
  2. Step 2: Convert to fraction form
    529,477.46/730,684.53 = 287,760.04/x
  3. Step 3: Cross multiply
    529,477.46x = 730,684.53 × 287,760.04
  4. Step 4: Simplify right side
    529,477.46x = 210,261,805,926.76
  5. Step 5: Solve for x
    x = 210,261,805,926.76/529,477.46
  6. Step 6: Final answer
    x = 397,111.91

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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.