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Finding the Fourth Proportional to 478,482.81, 717,835.32 and 162,942.45

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Solution

The fourth proportional to 478,482.81, 717,835.32 and 162,942.45 is: 244,451.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,482.81 : 717,835.32 = 162,942.45 : x
  2. Step 2: Convert to fraction form
    478,482.81/717,835.32 = 162,942.45/x
  3. Step 3: Cross multiply
    478,482.81x = 717,835.32 × 162,942.45
  4. Step 4: Simplify right side
    478,482.81x = 116,965,845,737.33
  5. Step 5: Solve for x
    x = 116,965,845,737.33/478,482.81
  6. Step 6: Final answer
    x = 244,451.51

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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.