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Finding the Fourth Proportional to 789,825, 1,090,133.82 and 545,153.16

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Solution

The fourth proportional to 789,825, 1,090,133.82 and 545,153.16 is: 752,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,825 : 1,090,133.82 = 545,153.16 : x
  2. Step 2: Convert to fraction form
    789,825/1,090,133.82 = 545,153.16/x
  3. Step 3: Cross multiply
    789,825x = 1,090,133.82 × 545,153.16
  4. Step 4: Simplify right side
    789,825x = 594,289,896,795.87
  5. Step 5: Solve for x
    x = 594,289,896,795.87/789,825
  6. Step 6: Final answer
    x = 752,432.37

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1.5x scale

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.