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Finding the Fourth Proportional to 562,963.77, 776,890.31 and 308,314.89

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Solution

The fourth proportional to 562,963.77, 776,890.31 and 308,314.89 is: 425,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,963.77 : 776,890.31 = 308,314.89 : x
  2. Step 2: Convert to fraction form
    562,963.77/776,890.31 = 308,314.89/x
  3. Step 3: Cross multiply
    562,963.77x = 776,890.31 × 308,314.89
  4. Step 4: Simplify right side
    562,963.77x = 239,526,848,928.14
  5. Step 5: Solve for x
    x = 239,526,848,928.14/562,963.77
  6. Step 6: Final answer
    x = 425,474.71

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1.5x scale

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.