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Finding the Fourth Proportional to 529,370.93, 730,530.46 and 287,653.49

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Solution

The fourth proportional to 529,370.93, 730,530.46 and 287,653.49 is: 396,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,370.93 : 730,530.46 = 287,653.49 : x
  2. Step 2: Convert to fraction form
    529,370.93/730,530.46 = 287,653.49/x
  3. Step 3: Cross multiply
    529,370.93x = 730,530.46 × 287,653.49
  4. Step 4: Simplify right side
    529,370.93x = 210,139,636,370.31
  5. Step 5: Solve for x
    x = 210,139,636,370.31/529,370.93
  6. Step 6: Final answer
    x = 396,961.04

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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.