Home / 1,146,009.60-1,719,014.40-1,128,294.90

Finding the Fourth Proportional to 1,146,009.60, 1,719,014.40 and 1,128,294.90

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Solution

The fourth proportional to 1,146,009.60, 1,719,014.40 and 1,128,294.90 is: 1,692,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,009.60 : 1,719,014.40 = 1,128,294.90 : x
  2. Step 2: Convert to fraction form
    1,146,009.60/1,719,014.40 = 1,128,294.90/x
  3. Step 3: Cross multiply
    1,146,009.60x = 1,719,014.40 × 1,128,294.90
  4. Step 4: Simplify right side
    1,146,009.60x = 1,939,555,180,546.56
  5. Step 5: Solve for x
    x = 1,939,555,180,546.56/1,146,009.60
  6. Step 6: Final answer
    x = 1,692,442.35

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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.