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Finding the Fourth Proportional to 439,200.90, 657,817.20 and 350,627.40

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Solution

The fourth proportional to 439,200.90, 657,817.20 and 350,627.40 is: 525,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,200.90 : 657,817.20 = 350,627.40 : x
  2. Step 2: Convert to fraction form
    439,200.90/657,817.20 = 350,627.40/x
  3. Step 3: Cross multiply
    439,200.90x = 657,817.20 × 350,627.40
  4. Step 4: Simplify right side
    439,200.90x = 230,648,734,511.28
  5. Step 5: Solve for x
    x = 230,648,734,511.28/439,200.90
  6. Step 6: Final answer
    x = 525,155.42

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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.