Home / 1,172,426.64-1,618,122.60-742,746.68

Finding the Fourth Proportional to 1,172,426.64, 1,618,122.60 and 742,746.68

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Solution

The fourth proportional to 1,172,426.64, 1,618,122.60 and 742,746.68 is: 1,025,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,426.64 : 1,618,122.60 = 742,746.68 : x
  2. Step 2: Convert to fraction form
    1,172,426.64/1,618,122.60 = 742,746.68/x
  3. Step 3: Cross multiply
    1,172,426.64x = 1,618,122.60 × 742,746.68
  4. Step 4: Simplify right side
    1,172,426.64x = 1,201,855,188,982.97
  5. Step 5: Solve for x
    x = 1,201,855,188,982.97/1,172,426.64
  6. Step 6: Final answer
    x = 1,025,100.55

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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.