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Finding the Fourth Proportional to 520,027.77, 778,709.97 and 359,881.97

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Solution

The fourth proportional to 520,027.77, 778,709.97 and 359,881.97 is: 538,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,027.77 : 778,709.97 = 359,881.97 : x
  2. Step 2: Convert to fraction form
    520,027.77/778,709.97 = 359,881.97/x
  3. Step 3: Cross multiply
    520,027.77x = 778,709.97 × 359,881.97
  4. Step 4: Simplify right side
    520,027.77x = 280,243,674,168.69
  5. Step 5: Solve for x
    x = 280,243,674,168.69/520,027.77
  6. Step 6: Final answer
    x = 538,901.36

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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.