Home / 489,434.40-734,419.08-189,926.82

Finding the Fourth Proportional to 489,434.40, 734,419.08 and 189,926.82

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Solution

The fourth proportional to 489,434.40, 734,419.08 and 189,926.82 is: 284,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,434.40 : 734,419.08 = 189,926.82 : x
  2. Step 2: Convert to fraction form
    489,434.40/734,419.08 = 189,926.82/x
  3. Step 3: Cross multiply
    489,434.40x = 734,419.08 × 189,926.82
  4. Step 4: Simplify right side
    489,434.40x = 139,485,880,411.73
  5. Step 5: Solve for x
    x = 139,485,880,411.73/489,434.40
  6. Step 6: Final answer
    x = 284,994.03

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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.