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Finding the Fourth Proportional to 529,477.35, 730,684.38 and 287,759.94

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Solution

The fourth proportional to 529,477.35, 730,684.38 and 287,759.94 is: 397,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,477.35 : 730,684.38 = 287,759.94 : x
  2. Step 2: Convert to fraction form
    529,477.35/730,684.38 = 287,759.94/x
  3. Step 3: Cross multiply
    529,477.35x = 730,684.38 × 287,759.94
  4. Step 4: Simplify right side
    529,477.35x = 210,261,693,347.74
  5. Step 5: Solve for x
    x = 210,261,693,347.74/529,477.35
  6. Step 6: Final answer
    x = 397,111.78

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1.5x scale

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.