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Finding the Fourth Proportional to 805,425.60, 1,207,101.60 and 617,505.60

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Solution

The fourth proportional to 805,425.60, 1,207,101.60 and 617,505.60 is: 925,463.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,425.60 : 1,207,101.60 = 617,505.60 : x
  2. Step 2: Convert to fraction form
    805,425.60/1,207,101.60 = 617,505.60/x
  3. Step 3: Cross multiply
    805,425.60x = 1,207,101.60 × 617,505.60
  4. Step 4: Simplify right side
    805,425.60x = 745,391,997,768.96
  5. Step 5: Solve for x
    x = 745,391,997,768.96/805,425.60
  6. Step 6: Final answer
    x = 925,463.50

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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.