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Finding the Fourth Proportional to 575,372.31, 863,307.77 and 308,821.36

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Solution

The fourth proportional to 575,372.31, 863,307.77 and 308,821.36 is: 463,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,372.31 : 863,307.77 = 308,821.36 : x
  2. Step 2: Convert to fraction form
    575,372.31/863,307.77 = 308,821.36/x
  3. Step 3: Cross multiply
    575,372.31x = 863,307.77 × 308,821.36
  4. Step 4: Simplify right side
    575,372.31x = 266,607,879,283.41
  5. Step 5: Solve for x
    x = 266,607,879,283.41/575,372.31
  6. Step 6: Final answer
    x = 463,365.85

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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.