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Finding the Fourth Proportional to 529,487.08, 730,697.83 and 287,769.67

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Solution

The fourth proportional to 529,487.08, 730,697.83 and 287,769.67 is: 397,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,487.08 : 730,697.83 = 287,769.67 : x
  2. Step 2: Convert to fraction form
    529,487.08/730,697.83 = 287,769.67/x
  3. Step 3: Cross multiply
    529,487.08x = 730,697.83 × 287,769.67
  4. Step 4: Simplify right side
    529,487.08x = 210,272,670,862.65
  5. Step 5: Solve for x
    x = 210,272,670,862.65/529,487.08
  6. Step 6: Final answer
    x = 397,125.22

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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.