Home / 1,226,223.64-1,692,335.90-742,774.60

Finding the Fourth Proportional to 1,226,223.64, 1,692,335.90 and 742,774.60

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Solution

The fourth proportional to 1,226,223.64, 1,692,335.90 and 742,774.60 is: 1,025,118.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,223.64 : 1,692,335.90 = 742,774.60 : x
  2. Step 2: Convert to fraction form
    1,226,223.64/1,692,335.90 = 742,774.60/x
  3. Step 3: Cross multiply
    1,226,223.64x = 1,692,335.90 × 742,774.60
  4. Step 4: Simplify right side
    1,226,223.64x = 1,257,024,121,188.14
  5. Step 5: Solve for x
    x = 1,257,024,121,188.14/1,226,223.64
  6. Step 6: Final answer
    x = 1,025,118.16

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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.