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Finding the Fourth Proportional to 629,963.90, 869,373.33 and 358,077.53

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Solution

The fourth proportional to 629,963.90, 869,373.33 and 358,077.53 is: 494,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,963.90 : 869,373.33 = 358,077.53 : x
  2. Step 2: Convert to fraction form
    629,963.90/869,373.33 = 358,077.53/x
  3. Step 3: Cross multiply
    629,963.90x = 869,373.33 × 358,077.53
  4. Step 4: Simplify right side
    629,963.90x = 311,303,054,654.28
  5. Step 5: Solve for x
    x = 311,303,054,654.28/629,963.90
  6. Step 6: Final answer
    x = 494,160.15

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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.