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Finding the Fourth Proportional to 565,627.44, 780,545.91 and 310,976.67

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Solution

The fourth proportional to 565,627.44, 780,545.91 and 310,976.67 is: 429,136.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,627.44 : 780,545.91 = 310,976.67 : x
  2. Step 2: Convert to fraction form
    565,627.44/780,545.91 = 310,976.67/x
  3. Step 3: Cross multiply
    565,627.44x = 780,545.91 × 310,976.67
  4. Step 4: Simplify right side
    565,627.44x = 242,731,567,873.92
  5. Step 5: Solve for x
    x = 242,731,567,873.92/565,627.44
  6. Step 6: Final answer
    x = 429,136.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.