Home / 743,372.64-1,115,101.08-210,851.51

Finding the Fourth Proportional to 743,372.64, 1,115,101.08 and 210,851.51

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Solution

The fourth proportional to 743,372.64, 1,115,101.08 and 210,851.51 is: 316,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,372.64 : 1,115,101.08 = 210,851.51 : x
  2. Step 2: Convert to fraction form
    743,372.64/1,115,101.08 = 210,851.51/x
  3. Step 3: Cross multiply
    743,372.64x = 1,115,101.08 × 210,851.51
  4. Step 4: Simplify right side
    743,372.64x = 235,120,740,945.13
  5. Step 5: Solve for x
    x = 235,120,740,945.13/743,372.64
  6. Step 6: Final answer
    x = 316,289.20

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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.