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Finding the Fourth Proportional to 825,321.60, 1,237,809.60 and 404,899.20

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Solution

The fourth proportional to 825,321.60, 1,237,809.60 and 404,899.20 is: 607,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,321.60 : 1,237,809.60 = 404,899.20 : x
  2. Step 2: Convert to fraction form
    825,321.60/1,237,809.60 = 404,899.20/x
  3. Step 3: Cross multiply
    825,321.60x = 1,237,809.60 × 404,899.20
  4. Step 4: Simplify right side
    825,321.60x = 501,188,116,792.32
  5. Step 5: Solve for x
    x = 501,188,116,792.32/825,321.60
  6. Step 6: Final answer
    x = 607,264.03

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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.