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Finding the Fourth Proportional to 563,030.84, 776,956.92 and 308,376.56

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Solution

The fourth proportional to 563,030.84, 776,956.92 and 308,376.56 is: 425,545.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,030.84 : 776,956.92 = 308,376.56 : x
  2. Step 2: Convert to fraction form
    563,030.84/776,956.92 = 308,376.56/x
  3. Step 3: Cross multiply
    563,030.84x = 776,956.92 × 308,376.56
  4. Step 4: Simplify right side
    563,030.84x = 239,595,302,257.80
  5. Step 5: Solve for x
    x = 239,595,302,257.80/563,030.84
  6. Step 6: Final answer
    x = 425,545.61

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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.