Home / 1,226,213.10-1,692,321.39-742,764.06

Finding the Fourth Proportional to 1,226,213.10, 1,692,321.39 and 742,764.06

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Solution

The fourth proportional to 1,226,213.10, 1,692,321.39 and 742,764.06 is: 1,025,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,213.10 : 1,692,321.39 = 742,764.06 : x
  2. Step 2: Convert to fraction form
    1,226,213.10/1,692,321.39 = 742,764.06/x
  3. Step 3: Cross multiply
    1,226,213.10x = 1,692,321.39 × 742,764.06
  4. Step 4: Simplify right side
    1,226,213.10x = 1,256,995,506,461.24
  5. Step 5: Solve for x
    x = 1,256,995,506,461.24/1,226,213.10
  6. Step 6: Final answer
    x = 1,025,103.64

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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.