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Finding the Fourth Proportional to 478,737.37, 718,006.56 and 141,698.94

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Solution

The fourth proportional to 478,737.37, 718,006.56 and 141,698.94 is: 212,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,737.37 : 718,006.56 = 141,698.94 : x
  2. Step 2: Convert to fraction form
    478,737.37/718,006.56 = 141,698.94/x
  3. Step 3: Cross multiply
    478,737.37x = 718,006.56 × 141,698.94
  4. Step 4: Simplify right side
    478,737.37x = 101,740,768,465.05
  5. Step 5: Solve for x
    x = 101,740,768,465.05/478,737.37
  6. Step 6: Final answer
    x = 212,518.96

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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.