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Finding the Fourth Proportional to 611,502.82, 843,737.92 and 369,780.39

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Solution

The fourth proportional to 611,502.82, 843,737.92 and 369,780.39 is: 510,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,502.82 : 843,737.92 = 369,780.39 : x
  2. Step 2: Convert to fraction form
    611,502.82/843,737.92 = 369,780.39/x
  3. Step 3: Cross multiply
    611,502.82x = 843,737.92 × 369,780.39
  4. Step 4: Simplify right side
    611,502.82x = 311,997,736,190.94
  5. Step 5: Solve for x
    x = 311,997,736,190.94/611,502.82
  6. Step 6: Final answer
    x = 510,214.72

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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.