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Finding the Fourth Proportional to 524,296.60, 786,444.90 and 445,564.60

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Solution

The fourth proportional to 524,296.60, 786,444.90 and 445,564.60 is: 668,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,296.60 : 786,444.90 = 445,564.60 : x
  2. Step 2: Convert to fraction form
    524,296.60/786,444.90 = 445,564.60/x
  3. Step 3: Cross multiply
    524,296.60x = 786,444.90 × 445,564.60
  4. Step 4: Simplify right side
    524,296.60x = 350,412,007,290.54
  5. Step 5: Solve for x
    x = 350,412,007,290.54/524,296.60
  6. Step 6: Final answer
    x = 668,346.90

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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.