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Finding the Fourth Proportional to 529,477.35, 730,684.39 and 287,759.93

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Solution

The fourth proportional to 529,477.35, 730,684.39 and 287,759.93 is: 397,111.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,477.35 : 730,684.39 = 287,759.93 : x
  2. Step 2: Convert to fraction form
    529,477.35/730,684.39 = 287,759.93/x
  3. Step 3: Cross multiply
    529,477.35x = 730,684.39 × 287,759.93
  4. Step 4: Simplify right side
    529,477.35x = 210,261,688,918.49
  5. Step 5: Solve for x
    x = 210,261,688,918.49/529,477.35
  6. Step 6: Final answer
    x = 397,111.77

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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.