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Finding the Fourth Proportional to 632,499.90, 872,812.71 and 345,962.94

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Solution

The fourth proportional to 632,499.90, 872,812.71 and 345,962.94 is: 477,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,499.90 : 872,812.71 = 345,962.94 : x
  2. Step 2: Convert to fraction form
    632,499.90/872,812.71 = 345,962.94/x
  3. Step 3: Cross multiply
    632,499.90x = 872,812.71 × 345,962.94
  4. Step 4: Simplify right side
    632,499.90x = 301,960,851,220.97
  5. Step 5: Solve for x
    x = 301,960,851,220.97/632,499.90
  6. Step 6: Final answer
    x = 477,408.54

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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.