Home / 913,838.82-1,370,913.81-458,647.12

Finding the Fourth Proportional to 913,838.82, 1,370,913.81 and 458,647.12

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Solution

The fourth proportional to 913,838.82, 1,370,913.81 and 458,647.12 is: 688,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,838.82 : 1,370,913.81 = 458,647.12 : x
  2. Step 2: Convert to fraction form
    913,838.82/1,370,913.81 = 458,647.12/x
  3. Step 3: Cross multiply
    913,838.82x = 1,370,913.81 × 458,647.12
  4. Step 4: Simplify right side
    913,838.82x = 628,765,670,724.73
  5. Step 5: Solve for x
    x = 628,765,670,724.73/913,838.82
  6. Step 6: Final answer
    x = 688,048.76

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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.