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Finding the Fourth Proportional to 608,416.60, 912,624.90 and 515,104.60

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Solution

The fourth proportional to 608,416.60, 912,624.90 and 515,104.60 is: 772,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,416.60 : 912,624.90 = 515,104.60 : x
  2. Step 2: Convert to fraction form
    608,416.60/912,624.90 = 515,104.60/x
  3. Step 3: Cross multiply
    608,416.60x = 912,624.90 × 515,104.60
  4. Step 4: Simplify right side
    608,416.60x = 470,097,284,064.54
  5. Step 5: Solve for x
    x = 470,097,284,064.54/608,416.60
  6. Step 6: Final answer
    x = 772,656.90

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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.