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Finding the Fourth Proportional to 529,543.96, 730,775.56 and 287,827.08

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Solution

The fourth proportional to 529,543.96, 730,775.56 and 287,827.08 is: 397,204.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,543.96 : 730,775.56 = 287,827.08 : x
  2. Step 2: Convert to fraction form
    529,543.96/730,775.56 = 287,827.08/x
  3. Step 3: Cross multiply
    529,543.96x = 730,775.56 × 287,827.08
  4. Step 4: Simplify right side
    529,543.96x = 210,336,995,570.17
  5. Step 5: Solve for x
    x = 210,336,995,570.17/529,543.96
  6. Step 6: Final answer
    x = 397,204.03

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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.