Home / 1,078,195.40-1,617,293.10-742,272.20

Finding the Fourth Proportional to 1,078,195.40, 1,617,293.10 and 742,272.20

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Solution

The fourth proportional to 1,078,195.40, 1,617,293.10 and 742,272.20 is: 1,113,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,195.40 : 1,617,293.10 = 742,272.20 : x
  2. Step 2: Convert to fraction form
    1,078,195.40/1,617,293.10 = 742,272.20/x
  3. Step 3: Cross multiply
    1,078,195.40x = 1,617,293.10 × 742,272.20
  4. Step 4: Simplify right side
    1,078,195.40x = 1,200,471,707,381.82
  5. Step 5: Solve for x
    x = 1,200,471,707,381.82/1,078,195.40
  6. Step 6: Final answer
    x = 1,113,408.30

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Double scale
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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.