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Finding the Fourth Proportional to 575,141.40, 863,100.90 and 322,421.40

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Solution

The fourth proportional to 575,141.40, 863,100.90 and 322,421.40 is: 483,850.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,141.40 : 863,100.90 = 322,421.40 : x
  2. Step 2: Convert to fraction form
    575,141.40/863,100.90 = 322,421.40/x
  3. Step 3: Cross multiply
    575,141.40x = 863,100.90 × 322,421.40
  4. Step 4: Simplify right side
    575,141.40x = 278,282,200,519.26
  5. Step 5: Solve for x
    x = 278,282,200,519.26/575,141.40
  6. Step 6: Final answer
    x = 483,850.06

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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.