Home / 743,474.58-1,025,982.27-403,940.40

Finding the Fourth Proportional to 743,474.58, 1,025,982.27 and 403,940.40

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Solution

The fourth proportional to 743,474.58, 1,025,982.27 and 403,940.40 is: 557,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,474.58 : 1,025,982.27 = 403,940.40 : x
  2. Step 2: Convert to fraction form
    743,474.58/1,025,982.27 = 403,940.40/x
  3. Step 3: Cross multiply
    743,474.58x = 1,025,982.27 × 403,940.40
  4. Step 4: Simplify right side
    743,474.58x = 414,435,688,536.71
  5. Step 5: Solve for x
    x = 414,435,688,536.71/743,474.58
  6. Step 6: Final answer
    x = 557,430.88

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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.