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Finding the Fourth Proportional to 529,526.84, 730,751.92 and 287,809.96

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Solution

The fourth proportional to 529,526.84, 730,751.92 and 287,809.96 is: 397,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,526.84 : 730,751.92 = 287,809.96 : x
  2. Step 2: Convert to fraction form
    529,526.84/730,751.92 = 287,809.96/x
  3. Step 3: Cross multiply
    529,526.84x = 730,751.92 × 287,809.96
  4. Step 4: Simplify right side
    529,526.84x = 210,317,680,865.12
  5. Step 5: Solve for x
    x = 210,317,680,865.12/529,526.84
  6. Step 6: Final answer
    x = 397,180.40

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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.