Home / 489,935.05-734,213.36-389,650.16

Finding the Fourth Proportional to 489,935.05, 734,213.36 and 389,650.16

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Solution

The fourth proportional to 489,935.05, 734,213.36 and 389,650.16 is: 583,927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,935.05 : 734,213.36 = 389,650.16 : x
  2. Step 2: Convert to fraction form
    489,935.05/734,213.36 = 389,650.16/x
  3. Step 3: Cross multiply
    489,935.05x = 734,213.36 × 389,650.16
  4. Step 4: Simplify right side
    489,935.05x = 286,086,356,007.80
  5. Step 5: Solve for x
    x = 286,086,356,007.80/489,935.05
  6. Step 6: Final answer
    x = 583,927.11

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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.