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Finding the Fourth Proportional to 572,441.90, 789,973.35 and 314,330

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Solution

The fourth proportional to 572,441.90, 789,973.35 and 314,330 is: 433,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,441.90 : 789,973.35 = 314,330 : x
  2. Step 2: Convert to fraction form
    572,441.90/789,973.35 = 314,330/x
  3. Step 3: Cross multiply
    572,441.90x = 789,973.35 × 314,330
  4. Step 4: Simplify right side
    572,441.90x = 248,312,323,105.50
  5. Step 5: Solve for x
    x = 248,312,323,105.50/572,441.90
  6. Step 6: Final answer
    x = 433,777.34

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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.