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Finding the Fourth Proportional to 761,936.78, 1,051,506 and 455,954.96

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Solution

The fourth proportional to 761,936.78, 1,051,506 and 455,954.96 is: 629,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,936.78 : 1,051,506 = 455,954.96 : x
  2. Step 2: Convert to fraction form
    761,936.78/1,051,506 = 455,954.96/x
  3. Step 3: Cross multiply
    761,936.78x = 1,051,506 × 455,954.96
  4. Step 4: Simplify right side
    761,936.78x = 479,439,378,798.53
  5. Step 5: Solve for x
    x = 479,439,378,798.53/761,936.78
  6. Step 6: Final answer
    x = 629,237.74

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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.