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Finding the Fourth Proportional to 652,359.22, 978,820.40 and 353,050.99

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Solution

The fourth proportional to 652,359.22, 978,820.40 and 353,050.99 is: 529,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,359.22 : 978,820.40 = 353,050.99 : x
  2. Step 2: Convert to fraction form
    652,359.22/978,820.40 = 353,050.99/x
  3. Step 3: Cross multiply
    652,359.22x = 978,820.40 × 353,050.99
  4. Step 4: Simplify right side
    652,359.22x = 345,573,509,687.77
  5. Step 5: Solve for x
    x = 345,573,509,687.77/652,359.22
  6. Step 6: Final answer
    x = 529,728.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.