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Finding the Fourth Proportional to 478,800.25, 660,737.12 and 263,935.67

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Solution

The fourth proportional to 478,800.25, 660,737.12 and 263,935.67 is: 364,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,800.25 : 660,737.12 = 263,935.67 : x
  2. Step 2: Convert to fraction form
    478,800.25/660,737.12 = 263,935.67/x
  3. Step 3: Cross multiply
    478,800.25x = 660,737.12 × 263,935.67
  4. Step 4: Simplify right side
    478,800.25x = 174,392,089,837.71
  5. Step 5: Solve for x
    x = 174,392,089,837.71/478,800.25
  6. Step 6: Final answer
    x = 364,227.23

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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.