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Finding the Fourth Proportional to 782,889.30, 1,174,443.30 and 333,606.60

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Solution

The fourth proportional to 782,889.30, 1,174,443.30 and 333,606.60 is: 500,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,889.30 : 1,174,443.30 = 333,606.60 : x
  2. Step 2: Convert to fraction form
    782,889.30/1,174,443.30 = 333,606.60/x
  3. Step 3: Cross multiply
    782,889.30x = 1,174,443.30 × 333,606.60
  4. Step 4: Simplify right side
    782,889.30x = 391,802,036,205.78
  5. Step 5: Solve for x
    x = 391,802,036,205.78/782,889.30
  6. Step 6: Final answer
    x = 500,456.50

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1.5x scale

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.