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Finding the Fourth Proportional to 638,601.94, 958,351.80 and 577,550.32

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Solution

The fourth proportional to 638,601.94, 958,351.80 and 577,550.32 is: 866,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,601.94 : 958,351.80 = 577,550.32 : x
  2. Step 2: Convert to fraction form
    638,601.94/958,351.80 = 577,550.32/x
  3. Step 3: Cross multiply
    638,601.94x = 958,351.80 × 577,550.32
  4. Step 4: Simplify right side
    638,601.94x = 553,496,388,532.51
  5. Step 5: Solve for x
    x = 553,496,388,532.51/638,601.94
  6. Step 6: Final answer
    x = 866,731.45

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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.