Home / 1,078,231.40-1,617,347.10-742,308.20

Finding the Fourth Proportional to 1,078,231.40, 1,617,347.10 and 742,308.20

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Solution

The fourth proportional to 1,078,231.40, 1,617,347.10 and 742,308.20 is: 1,113,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,231.40 : 1,617,347.10 = 742,308.20 : x
  2. Step 2: Convert to fraction form
    1,078,231.40/1,617,347.10 = 742,308.20/x
  3. Step 3: Cross multiply
    1,078,231.40x = 1,617,347.10 × 742,308.20
  4. Step 4: Simplify right side
    1,078,231.40x = 1,200,570,014,576.22
  5. Step 5: Solve for x
    x = 1,200,570,014,576.22/1,078,231.40
  6. Step 6: Final answer
    x = 1,113,462.30

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Double scale
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Similar ratio
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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.