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Finding the Fourth Proportional to 572,550.60, 858,825.90 and 413,920.20

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Solution

The fourth proportional to 572,550.60, 858,825.90 and 413,920.20 is: 620,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,550.60 : 858,825.90 = 413,920.20 : x
  2. Step 2: Convert to fraction form
    572,550.60/858,825.90 = 413,920.20/x
  3. Step 3: Cross multiply
    572,550.60x = 858,825.90 × 413,920.20
  4. Step 4: Simplify right side
    572,550.60x = 355,485,388,293.18
  5. Step 5: Solve for x
    x = 355,485,388,293.18/572,550.60
  6. Step 6: Final answer
    x = 620,880.30

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Half scale
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Double scale
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Similar ratio
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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.