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Finding the Fourth Proportional to 455,943.40, 683,915.10 and 367,369.90

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Solution

The fourth proportional to 455,943.40, 683,915.10 and 367,369.90 is: 551,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,943.40 : 683,915.10 = 367,369.90 : x
  2. Step 2: Convert to fraction form
    455,943.40/683,915.10 = 367,369.90/x
  3. Step 3: Cross multiply
    455,943.40x = 683,915.10 × 367,369.90
  4. Step 4: Simplify right side
    455,943.40x = 251,249,821,895.49
  5. Step 5: Solve for x
    x = 251,249,821,895.49/455,943.40
  6. Step 6: Final answer
    x = 551,054.85

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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.