Home / 816,107.60-1,224,161.40-658,643.60

Finding the Fourth Proportional to 816,107.60, 1,224,161.40 and 658,643.60

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Solution

The fourth proportional to 816,107.60, 1,224,161.40 and 658,643.60 is: 987,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,107.60 : 1,224,161.40 = 658,643.60 : x
  2. Step 2: Convert to fraction form
    816,107.60/1,224,161.40 = 658,643.60/x
  3. Step 3: Cross multiply
    816,107.60x = 1,224,161.40 × 658,643.60
  4. Step 4: Simplify right side
    816,107.60x = 806,286,071,477.04
  5. Step 5: Solve for x
    x = 806,286,071,477.04/816,107.60
  6. Step 6: Final answer
    x = 987,965.40

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Double scale
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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.