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Finding the Fourth Proportional to 636,608, 878,526.32 and 350,132.80

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Solution

The fourth proportional to 636,608, 878,526.32 and 350,132.80 is: 483,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,608 : 878,526.32 = 350,132.80 : x
  2. Step 2: Convert to fraction form
    636,608/878,526.32 = 350,132.80/x
  3. Step 3: Cross multiply
    636,608x = 878,526.32 × 350,132.80
  4. Step 4: Simplify right side
    636,608x = 307,600,880,295.30
  5. Step 5: Solve for x
    x = 307,600,880,295.30/636,608
  6. Step 6: Final answer
    x = 483,187.27

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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.