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Finding the Fourth Proportional to 572,329.96, 789,824.64 and 314,230.72

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Solution

The fourth proportional to 572,329.96, 789,824.64 and 314,230.72 is: 433,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,329.96 : 789,824.64 = 314,230.72 : x
  2. Step 2: Convert to fraction form
    572,329.96/789,824.64 = 314,230.72/x
  3. Step 3: Cross multiply
    572,329.96x = 789,824.64 × 314,230.72
  4. Step 4: Simplify right side
    572,329.96x = 248,187,165,300.94
  5. Step 5: Solve for x
    x = 248,187,165,300.94/572,329.96
  6. Step 6: Final answer
    x = 433,643.50

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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.